WO1995012009A1 - Beschichteter körper, verfahren zu dessen herstellung sowie dessen verwendung - Google Patents
Beschichteter körper, verfahren zu dessen herstellung sowie dessen verwendung Download PDFInfo
- Publication number
- WO1995012009A1 WO1995012009A1 PCT/EP1994/003562 EP9403562W WO9512009A1 WO 1995012009 A1 WO1995012009 A1 WO 1995012009A1 EP 9403562 W EP9403562 W EP 9403562W WO 9512009 A1 WO9512009 A1 WO 9512009A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- enrichment
- diamond
- concentration
- base body
- interphase
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 47
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 86
- 239000010432 diamond Substances 0.000 claims abstract description 86
- 230000016507 interphase Effects 0.000 claims abstract description 50
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims description 40
- 230000008569 process Effects 0.000 claims description 29
- 230000008020 evaporation Effects 0.000 claims description 13
- 238000001704 evaporation Methods 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 229910017052 cobalt Inorganic materials 0.000 claims description 9
- 239000010941 cobalt Substances 0.000 claims description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000000151 deposition Methods 0.000 claims description 7
- 230000008021 deposition Effects 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 229910052752 metalloid Inorganic materials 0.000 claims description 6
- 150000002738 metalloids Chemical class 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 150000001247 metal acetylides Chemical class 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 125000002524 organometallic group Chemical group 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 238000003486 chemical etching Methods 0.000 claims description 3
- 238000005566 electron beam evaporation Methods 0.000 claims description 3
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 206010035148 Plague Diseases 0.000 claims 2
- 241000607479 Yersinia pestis Species 0.000 claims 2
- 230000001276 controlling effect Effects 0.000 claims 1
- OANVFVBYPNXRLD-UHFFFAOYSA-M propyromazine bromide Chemical compound [Br-].C12=CC=CC=C2SC2=CC=CC=C2N1C(=O)C(C)[N+]1(C)CCCC1 OANVFVBYPNXRLD-UHFFFAOYSA-M 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 44
- 239000007789 gas Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 238000003801 milling Methods 0.000 description 8
- 238000004453 electron probe microanalysis Methods 0.000 description 6
- 238000005137 deposition process Methods 0.000 description 5
- 238000005240 physical vapour deposition Methods 0.000 description 4
- 230000002250 progressing effect Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000006911 nucleation Effects 0.000 description 3
- 238000010899 nucleation Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910009043 WC-Co Inorganic materials 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 150000002843 nonmetals Chemical class 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910010066 TiC14 Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000004993 emission spectroscopy Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
- C23C16/27—Diamond only
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/02—Pretreatment of the material to be coated
- C23C16/0272—Deposition of sub-layers, e.g. to promote the adhesion of the main coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/27—Cutters, for shaping comprising tool of specific chemical composition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
Definitions
- the present invention relates to an at least partially coated body, comprising a base body made of a multiphase material and at least one diamond layer. It further relates to a process for its production and uses of the body mentioned.
- Body made of multiphase material is a body made of multiphase material
- a multi-phase material is a material that is composed of several phases, which either belong to the same connection or different connections. In the case of different connections, the connections may or may not have elements in common. This includes, for example, hardened steels, cermets and especially hard metals.
- interphase which can be a few ⁇ m wide, but also narrower, has material portions of the body material as well as the diamond coating, with portions changing in the direction perpendicular to the coated body surface. This corresponds to the material composition in the interphase neither that of the base body nor that of the diamond layer.
- Metalloids are understood to mean the following elements: non-metals and semi-metals, in particular B, Si, Ge, S and P.
- EP-A-0 166 708 proposes, in order to increase the adhesive strength of the diamond layer, to install an intermediate adhesive layer before applying it.
- a material different from the material of the base body and the diamond layer such as required by definition for an intermediate layer.
- a metal from group IVb to VIb of the periodic system is used as the interlayer material, preferably Ti, or a carbide, nitride, carbonitride, oxyarbide, oxide or boride of one of said metals or a noble metal.
- intermediate layers have proven itself to achieve good adhesion. For good wear resistance, not only good adhesion is required, but also other properties, such as high toughness and high shear strength. Both the diamond layer and the base body are usually optimized so that they meet these mechanical requirements. However, if an intermediate layer is additionally applied, this leads to far more complicated optimization problems in this regard.
- Providing a metallic intermediate layer leads, for example, to a zone with greatly reduced shear resistance, so that when bodies coated in this way are used as tools, in particular cutting tools, layer loss occurs rapidly in the highly stressed areas, such as on cutting edges, when stressed .
- the same also applies to the provision of metalloid intermediate layers.
- the mentioned documents treat the diamond coating of single- and multi-phase basic bodies equally and do not aim at increasing the wear resistance, which, for example in the case of diamond-coated silicon bodies, scarcely of It is of essential importance because, in the above-mentioned sense, silicon as a single-phase material can hardly be described as a basic body material that is itself optimized in terms of wear behavior.
- the body mentioned at the outset is characterized in that an element enrichment in the interphase tion is introduced, with a concentration which is higher than the concentration of this element on an identical diamond-coated same base body without an enrichment with the element.
- the element concentration introduced according to the invention is by definition higher than on a base body with the same diamond coating. If the enrichment element is already present in the base body material or in the diamond coating material, the enrichment inserted according to the invention is obtained by comparison with the course of the concentration of the element under consideration on an identical base body which has been diamond coated without any enrichment measures, but otherwise the same.
- the wear behavior i.e. Combination, in particular of the adhesion, shear resistance and toughness behavior of the diamond-coated body made of multiphase material, is significantly improved by introducing an element enrichment in the interphase with a concentration that is higher than the element concentration in at least one point in the interphase ⁇ tion, if the same base body is coated with the same diamond, but without specifically introduced element enrichment.
- the thickness of the diamond layer is chosen to be less than 50 ⁇ m, preferably 2 ⁇ m to 30 ⁇ m, both limits included.
- the body coated according to the invention is characterized in one variant in that the nucleation density of the diamond layer is essentially the same, unaffected by the element enrichment, as on an identical base body which is coated with the same diamond as mentioned, without being enriched with the element. as a basis for comparison.
- the thickness of the interphase is preferably a few ⁇ m, preferably not more than 15 ⁇ m, more preferably not more than 10 ⁇ m.
- the concentration profile of the element enrichment can be at least substantially constant in a substantial area of the interphase, can be kept at the concentration value that it also has in the base body material if the proportion of this element in the base body material does not disappear, especially when the proportion of this element in the base body disappears, first increase and then be kept essentially constant along a substantial area of the interphase.
- at least one maximum point of the element enrichment concentration is preferably present in the interphase.
- the effect sought according to the invention namely increasing the wear resistance of a diamond-coated base body made of a multi-phase material, is achieved particularly well if, according to the wording of claim 6, the element enrichment has at least one concentration which by 0.01at%, preferably by 0.05at%, particularly preferably by 0.5at%, particularly by lat% is higher than the concentration of the same element with the same diamond coating of the same basic body without enrichment.
- an optimized wear behavior is also achieved in that, in the sense of a maximum limit, the element concentration in the area of the interphase is at most 50at%, but preferably 2 to 20at%, including both limits, higher than the element concentration in the Interphase on an identical diamond-coated base body without element enrichment.
- the metals Mg, Al, Cu, but in particular Al, or the metalloids B, Si, Ge, S, P have proven to be the enrichment element, in each case as a component of the enrichment element or as that Enrichment element itself proven.
- the main body can preferably comprise, as an essential constituent, one or more carbides and cobalt in a uniformly distributed mixture.
- the zone near the surface in the base body can additionally be cobalt-depleted, preferably combined with a Co-enriched zone adjoining the zone on the body side.
- the element enrichment takes place at least partially at the same time as the diamond deposition.
- the element enrichment can either begin immediately before the diamond deposition and be continuously transferred to the diamond deposition without interrupting the process, or the diamond deposition takes place simultaneously with the element enrichment.
- the element enrichment is carried out immediately before and at the beginning or only at the beginning of the diamond deposition.
- the element enrichment or the structure of the interphase can be controlled relatively easily by the element enrichment being carried out from the gas phase, preferably from an organometallic or metalloid-organic gas phase.
- known vacuum coating processes such as CVD processes, PVD processes or PECVD processes (plasma enhanced chemical vapor deposition), are suitable for element enrichment.
- the element enrichment is carried out by means of a PVD process, preferably by means of evaporation, e.g. with the use of electron beam evaporation, realized or by a plasma chemical reaction with a solid, a ceramic being used particularly simply as a solid, at least one element of which is released in gaseous form into the process atmosphere by a plasma chemical reaction.
- plasma-chemical reaction processes around the enrichment element are also particularly suitable bring in.
- the plasma chemical reaction can take place, for example, by decomposing organometallic or metalloid organic gases, but also by reacting the reactive atomic hydrogen present in conventional diamond deposition processes with a ceramic solid.
- an embodiment variant of the method according to the invention is that a body is used, the material of which comprises one or more carbides and Co, in a further embodiment the surface area of the base body by sintering or by a chemical etching process the diamond coating is co-depleted when the enrichment element is installed.
- the co-depletion on the surface of the base body can be achieved by a metallurgical sintering process, the depth of the depleted zone in the base body being in the range from 5 to 50 ⁇ m, preferably in the range from 10 to 20 ⁇ m, lies.
- the cobalt-depleted zone is located in the base body and not in the interphase.
- the base body has a co-depletion zone of 5 to 50 ⁇ m thick (both boundaries included), preferably from 10 to 20 ⁇ m, in combination with a Co-enriched zone which adjoins the depletion zone on the body side and is 50 to 500 ⁇ m thick is preferably 50 to 150 ⁇ m thick (all limit values included).
- the Co content is higher than in the binder phase of the original, unmodified basic body material.
- the depleted zone is preferably thinner than 10 ⁇ m, preferably thinner than 5 ⁇ m. This in turn viewed without interphase.
- EP-A-0 478 909 which forms part of the present description as Appendix A.
- the element enrichment in the interphase is preferably realized in that the enrichment element is evaporated, at least partially during the diamond coating, and its concentration in the process atmosphere is controlled open loop or closed loop by the evaporation power of an evaporation source, e.g. of an electron beam evaporator for the element, is set in the control loop as an actuator or used as a control element.
- an evaporation source e.g. of an electron beam evaporator for the element
- the enrichment element is introduced, at least partially during the diamond coating, by a plasma-chemical reaction with a solid in the process atmosphere and its concentration in the atmosphere is controlled by open loop controls or closed loop rules by the power of the plasma discharge and / or the gas composition of the coating atmosphere are set.
- the concentration of the enrichment element in the coating atmosphere can be measured by emission spectroscopy, as the measured actual value in a control circuit for guiding the element concentration in the process atmosphere or as a control variable for a concentration open-loop control.
- the body according to the invention is particularly suitable as a tool, in particular as a cutting tool, such as for turning, milling or drilling.
- these bodies are for machining non-ferrous metals, such as aluminum alloys or non-ferrous metals, and for machining processing of non-metals, such as plastic, wood or composite materials.
- the bodies according to the invention are particularly suitable as components with high wear resistance, in particular abrasion-resistant.
- the method according to the invention is particularly suitable for the production of wear-resistant bodies.
- FIG. 1 shows a schematic representation of the base body, interphase and diamond layer to explain the interphase concept
- Fig. 3 is a schematic representation to define the Beam width in the EPMA measurement according to FIGS. 2a and 2b;
- FIG. 4b shows a scanning electron microscopic image of the cross section according to FIG. 4a over the base body, interphase and diamond layer at an enlargement of 2000;
- FIG. 6 shows a schematic illustration to explain the tests carried out on bodies according to the invention and not according to the invention for determining and comparing their wear resistance.
- FIG. 1 shows schematically the conditions on a diamond-coated, multi-phase base body, as they exist both in the case of de-enrichment according to the invention and in the case of conventional coating.
- the base body material M GK essentially does not change, proceeding outwards in the direction x in the direction x, which is indicated in FIG. 1 by dM GK / dx ⁇ 0.
- the material composition fundamentally changes from that of the base body to that of the diamond layer, which, progressing in said direction, in the interphase, as indicated in FIG. 1, is both dM Gk / dx ⁇ 0, as well as dM DS / dx ist 0.
- these conditions do not need to be fulfilled simultaneously at each location x; it is sufficient if one of the two conditions is met.
- the proportion of the base body material M GK or at least one essential component of this material will decrease and within the interphase the content of the diamond layer material M DS , progressing in said direction, to increase.
- hard metal indexable inserts were essentially diamond-coated from tungsten carbide and cobalt, with element enrichment according to the invention in the interphase, in which case aluminum was used as the enrichment element.
- the element enrichment can be installed, for example, by action of the atomic hydrogen in the process atmosphere take place with a ceramic solid in the reactor, as a result of which the enrichment element is converted into gas and is installed in the interphase parallel to the diamond deposition process.
- the element is released into the process atmosphere in particular immediately before and / or during the initial phase of the diamond deposition process.
- any other PVD method such as thermal evaporation, electron beam evaporation, arc evaporation or cathode sputtering, can just as well be used to install the enrichment element.
- the enrichment element can also be introduced by plasma-chemical reaction with gaseous compounds of the respective enrichment element, such as, for example, with organometallic or organometallic compounds.
- the emission spectroscopic measurement of the concentration of the concentration element in this gas phase has proven to be particularly suitable for controlling the concentration of the concentration element in the gas phase, at least partially simultaneously with the build-up of the diamond layer, the measurement result being a measured IS value in a control circuit for said con ⁇ concentration is used, the release rate of the enrichment element into the process atmosphere, depending on the method used, being used as a manipulated variable.
- Fig. 5 shows the controlled or controlled Concentration curve of the enrichment element, for example of aluminum, over time in comparison to the concentration of hydrogen. It can be seen that in the element enrichment shown here according to the invention, for example, this essentially takes place in the first hour, with a total diamond coating time of ten hours.
- ERS ⁇ TZBL ⁇ T (RULE 26)
- the basic bodies are indexable inserts. According to experiments Nos. DiD 73, 163, 169 and EID 92a) -92c) and all indexable inserts EID 66 and DID 53 coated according to known diamond coating methods, without using the element enrichment according to the invention, the same milling tests were subjected to the same milling tests.
- FIG. 2a shows the qualitative aluminum enrichment measured by EPMA when the element enrichment is carried out according to the invention for a commercially available hard metal base body without cobalt depletion, that is to say, for example, according to experiment EID 92a, 92b, while FIG. 2b, analogously, shows aluminum Enrichment on a Co-depleted body - additionally with a Co-enrichment zone - for example according to the examples DID 73, 163, 169 shows.
- a maximum of the aluminum concentration in the area of the interphase can be clearly seen.
- the further course of the concentration of the enrichment element outside the interphase i.e. both into the base body and into the diamond layer, for which it is not essential to achieve the high wear resistance according to the invention.
- FIG. 3 shows a schematic representation of the measurement procedure for the measurement according to FIG. 2.
- 1 means the diamond layer, 2 the interphase and 3 the base body.
- the rectangle represents the analysis surface, the analysis beam, with a width w in the y direction of 250 ⁇ m, being scanned in the x direction.
- FIG. 4a shows the aluminum distribution measured using EPMA using a cross section in the diamond layer, interphase and basic body, for example according to the concentration distribution according to FIG. 2b.
- the enrichment of the enrichment element, namely aluminum, can be clearly seen in the interphase.
- 4b shows the associated scanning electron micrograph of the cross section over the base body, interphase and diamond layer.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95900095A EP0730670B1 (de) | 1993-10-29 | 1994-10-28 | Beschichteter körper, verfahren zu dessen herstellung sowie dessen verwendung |
AU81052/94A AU8105294A (en) | 1993-10-29 | 1994-10-28 | Coated body, its method of production and its use |
DE59408289T DE59408289D1 (de) | 1993-10-29 | 1994-10-28 | Beschichteter körper, verfahren zu dessen herstellung sowie dessen verwendung |
US08/424,325 US5897942A (en) | 1993-10-29 | 1994-10-28 | Coated body, method for its manufacturing as well as its use |
BR9407924A BR9407924A (pt) | 1993-10-29 | 1994-10-28 | Corpo revestido processo para sua fabricaçao assim como emprego do mesmo |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3268/93 | 1993-10-29 | ||
CH3267/93 | 1993-10-29 | ||
CH326793 | 1993-10-29 | ||
CH326893 | 1993-10-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995012009A1 true WO1995012009A1 (de) | 1995-05-04 |
Family
ID=25692615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1994/003562 WO1995012009A1 (de) | 1993-10-29 | 1994-10-28 | Beschichteter körper, verfahren zu dessen herstellung sowie dessen verwendung |
Country Status (11)
Country | Link |
---|---|
US (1) | US5897942A (de) |
EP (1) | EP0730670B1 (de) |
JP (1) | JP3166919B2 (de) |
KR (1) | KR100374975B1 (de) |
CN (1) | CN1152979C (de) |
AT (1) | ATE180288T1 (de) |
AU (1) | AU8105294A (de) |
BR (1) | BR9407924A (de) |
DE (1) | DE59408289D1 (de) |
PL (1) | PL314108A1 (de) |
WO (1) | WO1995012009A1 (de) |
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- 1994-10-28 PL PL31410894A patent/PL314108A1/xx unknown
- 1994-10-28 AT AT95900095T patent/ATE180288T1/de not_active IP Right Cessation
- 1994-10-28 US US08/424,325 patent/US5897942A/en not_active Expired - Lifetime
- 1994-10-28 BR BR9407924A patent/BR9407924A/pt not_active Application Discontinuation
- 1994-10-28 JP JP51242395A patent/JP3166919B2/ja not_active Expired - Lifetime
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5772366A (en) * | 1994-03-18 | 1998-06-30 | Sandvik Ab | Diamond coated body |
WO1999031292A1 (en) * | 1997-12-18 | 1999-06-24 | Sandvik Ab (Publ) | Coated cemented carbide cutting tool and method of coating it with diamond |
US6447912B1 (en) | 1997-12-18 | 2002-09-10 | Sandvik Ab | Coated cemented carbide cutting tool and method of coating it with diamond |
Also Published As
Publication number | Publication date |
---|---|
CN1139958A (zh) | 1997-01-08 |
CN1152979C (zh) | 2004-06-09 |
PL314108A1 (en) | 1996-08-19 |
US5897942A (en) | 1999-04-27 |
AU8105294A (en) | 1995-05-22 |
EP0730670B1 (de) | 1999-05-19 |
EP0730670A1 (de) | 1996-09-11 |
KR100374975B1 (ko) | 2003-07-22 |
ATE180288T1 (de) | 1999-06-15 |
BR9407924A (pt) | 1996-11-26 |
JP3166919B2 (ja) | 2001-05-14 |
DE59408289D1 (de) | 1999-06-24 |
JPH09504261A (ja) | 1997-04-28 |
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