Patent application number | Description | Published |
20080292812 | Vacuum Treatment Installation and Vacuum Treatment Method - Vacuum treatment installation or vacuum treatment method for carrying out a plasma method, wherein the treatment is carried out in a vacuum chamber, in which are disposed a device for generating an electric low voltage arc discharge (NVBE) comprised of a cathode and an anode electrically interconnectable with the cathode via an arc generator, and a workpiece carrier electrically interconnectable with a bias generator for receiving and moving workpieces, as well as at least one feed for inert and/or reactive gas. At least a portion of the surface of the anode is therein fabricated of graphite and is operated at high temperature. | 11-27-2008 |
20090148599 | PVD - VACUUM COATING UNIT - A vacuum coating unit includes a reactive gas inlet, at least one PVD coating source with a laminar cathode and a substrate carrier containing a multiplicity of substrates. The substrate carrier forms a two dimensional horizontal extent, and the carrier is between at least two PVD coating sources. The substrates are cutting tools with at least one cutting edge in their peripheral margin region, which are distributed in a plane of the two dimensional extent of the substrate carrier. The substrate carrier is in a horizontal plane in the vacuum process chamber spaced between the laminar cathodes of the PVD coating sources and positioned such that at least a portion of each of the at least one cutting edge includes an active cutting edge and this active cutting edge is oriented opposite at least one of the cathodes of the PVD coating sources exposed at any time along a line of sight. | 06-11-2009 |
20090166188 | METHOD FOR DEPOSITING ELECTRICALLY INSULATING LAYERS - Method for producing low-conductivity layers, especially insulating layers, on at least one workpiece by vacuum coating, wherein an electrical arc discharge is operated between at least one anode and one cathode of an arc source in an atmosphere containing reactive gas, and only a small external magnetic field essentially perpendicular to the target surface or none at all is generated at the surface of a target electrically connected to the cathode to assist the evaporation process, the degree of recoating of the surface by other coating sources being less than 10%, and the magnetic field being generated by a magnet system that comprises at least one axially polarized coil with a geometry similar in size to the target. | 07-02-2009 |
20100291320 | METHOD FOR MANUFACTURING A TREATED SURFACE AND VACUUM PLASMA SOURCES - When treating workpiece or substrate surfaces with the help of a vacuum plasma discharge between an anode and an cathode and whereby due to such treatment a solid is formed and deposited on the anode surface, which solid has a higher specific DC impedance than the specific DC impedance of the anode material, at least parts of the anode surface are shielded from such deposition by establishing thereat a shielding plasma. | 11-18-2010 |
20130036942 | COATING BASED ON NiAl2O4 IN SPINEL STRUCTURE - The invention relates to a coating that comprises at least one compound of oxygen and/or nitrogen with at least two metal materials, said compound being present at least partly in spinel structure. The invention also relates to a method for coating and to a coated substrate. | 02-14-2013 |
Patent application number | Description | Published |
20080286496 | Method for depositing electrically insulating layers - The invention relates to a method for operating an arc source, whereby an electric spark discharge is ignited and run on the surface of a target and the spark discharge is simultaneously fed a direct current with an associated constant voltage DV as well as a pulsed current generated by a periodically applied voltage signal. The voltage at the arc source is boosted over several microseconds and the shape of the voltage signal is in essence arbitrarily selectable. | 11-20-2008 |
20080286608 | CUTTING TOOL - The invention provides a single or a multilayer PVD coated sharp edged cutting tool, which can at the same time exhibit satisfactory wear and thermochemical resistance as well as resistance to edge chipping. The cutting tool comprises a sintered body made of a cemented carbide, a CBN, a cermet or a ceramic material having a cutting edge with an edge radius R | 11-20-2008 |
20090191417 | PERMEATION BARRIER LAYER - The method for manufacturing a hydrogen permeation barrier comprises the steps of
| 07-30-2009 |
20090269600 | METHOD FOR PRODUCING METAL OXIDE LAYERS THROUGH ARC VAPORIZATION - The invention relates to a method for producing oxidic layers by means of PVD (physical vapor deposition), in particular by means of cathodic arc vaporization, wherein a powder-metallurgical target is vaporized and the powder-metallic target is formed of at least two metallic or semi-metallic components, the composition of the metallic or semi-metallic components resp. of the target being chosen in such a manner that during heating in the transition from the room temperature into the liquid phase no phase boundary of purely solid phases, based on the phase diagram of a molten mixture of the at least two metallic or semi-metallic components, is crossed. | 10-29-2009 |
20090269615 | METHOD FOR PRODUCING METAL OXIDE LAYERS OF PREDETERMINED STRUCTURE THROUGH ARC VAPORIZATION - The invention relates to a method for producing layers consisting of ternary and higher oxides of metallic and semi-metallic components, wherein the formation temperature of these oxides can be determined essentially through the composition of the binary (or higher) alloy targets (based on the phase diagram). | 10-29-2009 |
20110183084 | LAYER SYSTEM WITH AT LEAST ONE MIXED CRYSTAL LAYER OF A MULTI-OXIDE - A PVD layer system for the coating of workpieces encompasses at least one mixed-crystal layer of a multi-oxide having the following composition: (Me1 | 07-28-2011 |
20110278157 | METHOD FOR PRETREATING SUBSTRATES FOR PVD METHODS - The invention relates to a method for surface treatment of work pieces in a vacuum treatment system having a first electrode embodied as a target, which is part of an arc vaporization source; by means of the first electrode, an arc is operated with an arc current and vaporizes material from the target that is deposited at least partially and intermittently onto the work pieces and having a second electrode that is embodied as a work piece holder and, together with the work pieces, constitutes a bias electrode; by means of a voltage supply, a bias voltage is applied to the bias electrode, with the bias voltage applied so that it is matched to the arc current such that essentially, no net material buildup on the surface occurs. | 11-17-2011 |
20130048490 | SYNTHESIS OF METAL OXIDES BY REACTIVE CATHODIC ARC EVAPORATION - In these investigations, an attempt has been made to correlate the deposition parameters of the reactive cathodic arc evaporation with processes at the surface of the composite Al—Cr targets and the nucleation and phase formation of the synthesized Al—Cr—O layers. The oxygen partial pressure and the pulsed operation of the arc current influence the formation of intermetallic phases and solid solutions at the target surface. The nucleation of the ternary oxides at the substrate site appears to be, to some extent, controllable by the intermetallics or solid solutions formed at the target surface. A specific nucleation process at substrate site can therefore be induced by the free choice of target composition in combination with the partial pressure of the oxygen reactive gas. It also allows the control over the oxide island growth at the target surface which occurs occasionally at higher oxygen partial pressure. This hypothesis is supported by the X-ray diffraction analysis of the layers as well as of the target surface. | 02-28-2013 |
20130153408 | METHOD FOR PRODUCING CUBIC ZIRCONIA LAYERS - In order to produce zirconia-based layers on a deposition substrate, wherein reactive spark deposition using pulsed spark current and/or the application of a magnetic field that is perpendicular to the spark target are employed, a mixed target comprising elemental zircon and at least one stabilizer is used, or a zirconium target comprising elemental zirconium is used, wherein in addition to oxygen, nitrogen is used as the reactive gas. As an alternative, combined with the use of the mixed target, nitrogen can also be used as the reactive gas in addition to oxygen. | 06-20-2013 |
20130303414 | MOLYBDENUM MONOXIDE LAYERS, AND PRODUCTION THEREOF USING PVD - The invention relates to a coating comprising at least one molybdenum-containing layer having molybdenum oxide, said molybdenum being essentially molybdenum monoxide. The invention further relates to a PVD process for producing the disclosed coating, in which the layer comprising the molybdenum monoxide is produced using arc evaporation. The invention also relates to a component that has said coating. | 11-14-2013 |
20140054165 | CARBON SPARK EVAPORATION - The invention relates to a method for operating a pulsed discontinuous spark discharge. The spark is fed via a capacitor. Between the pulses there are switched-off time intervals during which no spark current flows. Within the pulses, that is to say during the switched-on time intervals, the supply of charge is stopped upon a current threshold being reached and is restarted, with the result that subpulses occur within the pulses. The time intervals and subpulses are chosen according to the invention such that when the capacitor is switched on again, the spark discharge readily ignites again. | 02-27-2014 |
20140061034 | METHOD FOR PRETREATING SUBSTRATES FOR PVD METHODS - The invention relates to a method for coating work pieces in a vacuum treatment system having a first electrode embodied as a target, which is part of an arc vaporization source. Using the first electrode, an arc is operated with an arc current and vaporizes material. A bias voltage is applied to a bias electrode, which includes a second electrode that is embodied as a work piece holder, together with the work pieces. Metal ion bombardment is carried out either to pretreat the work pieces or in at least one transition from one layer to an adjacent layer of a multilayer system, so that neither a significant material removal nor a significant material buildup occurs, but instead, introduces metal ions into a substrate surface or into a layer of a multilayer system. | 03-06-2014 |
20140120456 | PERMEATION BARRIER LAYER - A sealable volume has a wall forming at least a portion of a boundary limiting the volume. The wall includes a hydrogen permeation barrier including a layer system (LS) having at least one layer. The layer system includes at least one hydrogen barrier layer (HPBL) of an at least ternary oxide. Preferably, the oxide is substantially composed of Al, Cr and O and the hydrogen barrier layer (HPBL) is deposited using physical vapor deposition, in particular cathodic arc evaporation. Preferably, the layer system includes at least one of: an adhesion layer (AdhL), a hydrogen storage layer (HStL), a protective layer (ProtL), in particular a thermal barrier layer (ThBL), a diffusion barrier layer (DBL), an oxidation barrier layer (OxBL), a chemical barrier layer (ChBL), a wear resistance layer (WRL). Excellent hydrogen permeation barrier properties can be achieved, and the layer system can be tailored as required by an envisaged application. | 05-01-2014 |
Patent application number | Description | Published |
20120021137 | CUTTING TOOL - A method for manufacturing a cutting tool includes the steps of providing a body of cermet or cemented carbide, having a cutting edge with an edge radius R | 01-26-2012 |
20120160665 | METHOD FOR PRODUCING COATINGS WITH A SINGLE COMPOSITE TARGET - The invention pertains to a method for the production of coatings by physical vapor deposition (PVD), wherein a binary target or a target with more than two constituents is evaporated in a curvilinear cathodic arc discharge, causing the ions with different masses (elements) to be splitted and the ion splitting results in variations for the ratio of the different masses (elements) at different positions in the deposition chamber. | 06-28-2012 |
20130048490 | SYNTHESIS OF METAL OXIDES BY REACTIVE CATHODIC ARC EVAPORATION - In these investigations, an attempt has been made to correlate the deposition parameters of the reactive cathodic arc evaporation with processes at the surface of the composite Al—Cr targets and the nucleation and phase formation of the synthesized Al—Cr—O layers. The oxygen partial pressure and the pulsed operation of the arc current influence the formation of intermetallic phases and solid solutions at the target surface. The nucleation of the ternary oxides at the substrate site appears to be, to some extent, controllable by the intermetallics or solid solutions formed at the target surface. A specific nucleation process at substrate site can therefore be induced by the free choice of target composition in combination with the partial pressure of the oxygen reactive gas. It also allows the control over the oxide island growth at the target surface which occurs occasionally at higher oxygen partial pressure. This hypothesis is supported by the X-ray diffraction analysis of the layers as well as of the target surface. | 02-28-2013 |
20130153408 | METHOD FOR PRODUCING CUBIC ZIRCONIA LAYERS - In order to produce zirconia-based layers on a deposition substrate, wherein reactive spark deposition using pulsed spark current and/or the application of a magnetic field that is perpendicular to the spark target are employed, a mixed target comprising elemental zircon and at least one stabilizer is used, or a zirconium target comprising elemental zirconium is used, wherein in addition to oxygen, nitrogen is used as the reactive gas. As an alternative, combined with the use of the mixed target, nitrogen can also be used as the reactive gas in addition to oxygen. | 06-20-2013 |
20130303414 | MOLYBDENUM MONOXIDE LAYERS, AND PRODUCTION THEREOF USING PVD - The invention relates to a coating comprising at least one molybdenum-containing layer having molybdenum oxide, said molybdenum being essentially molybdenum monoxide. The invention further relates to a PVD process for producing the disclosed coating, in which the layer comprising the molybdenum monoxide is produced using arc evaporation. The invention also relates to a component that has said coating. | 11-14-2013 |