| Patents for C23C 8 - Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals (10,951) |
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| 06/21/1983 | US4389439 Erosion resistant tubular apparatus for handling slurries |
| 06/14/1983 | CA1148036A1 Corrosion resistant coatings for metal articles |
| 06/07/1983 | US4386973 With hydrocarbon and aliphatic alcohol carrier gas |
| 06/07/1983 | US4386972 Injection of a mixture of nitrogen, natural gas, and air |
| 06/01/1983 | EP0080124A2 Process for case hardening metallic articles |
| 05/25/1983 | EP0079864A1 Process for high-temperature carburizing treatment of track bushes for tractors or tracked vehicles, with carburizing atmosphere produced in situ, direct quenching, annealing at ends and total stress relieving |
| 05/25/1983 | EP0079796A2 Process for producing particulate metallic material |
| 05/25/1983 | EP0079773A1 Method of forming strengthened assemblies of titanium-containing iron based alloys |
| 05/24/1983 | US4385376 Method of making an optical memory disk and a product thereby |
| 05/24/1983 | CA1146844A1 Process for steel heat treating and control thereof |
| 05/10/1983 | US4382976 Method of forming corrosion resistant coatings on metal articles |
| 05/10/1983 | US4382829 Austenite alloy tubes having excellent high temperature vapor oxidation resistant property |
| 05/04/1983 | EP0078224A1 Inhibiting corrosion of aluminium metallization |
| 05/04/1983 | EP0077926A1 Process to suppress surface deposits during salt bath nitriding of structural parts |
| 05/03/1983 | US4382100 Application of a layer of carbonaceous material to a surface |
| 05/03/1983 | US4381955 Gold based electrical contact materials, and method therefor |
| 04/27/1983 | EP0077627A2 Corrosion resistant steel components and method of manufacture |
| 04/26/1983 | US4381204 Adhesion of rubber to brass |
| 04/26/1983 | CA1145232A1 Atmosphere injection system |
| 04/13/1983 | EP0076562A2 Substrate with chemically modified surface and method of manufacture thereof |
| 04/13/1983 | EP0076488A2 Process for forming Fe2B layers on articles of ferrous alloys |
| 03/29/1983 | US4378257 Process for the temporary shutdown of continuous discharge carburizing plants |
| 03/29/1983 | CA1143842A1 Apparatus for control and monitoring of the carbon potential of an atmosphere in a heat-processing furnace |
| 03/16/1983 | EP0074211A1 Coated metal substrate and method of coating a metal substrate |
| 03/08/1983 | CA1142419A1 Process and apparatus for removing sludge from salt baths |
| 03/02/1983 | EP0072789A1 Fused salt bath composition |
| 03/01/1983 | CA1141960A1 Installation for generating a metal heat treatment atmosphere |
| 02/23/1983 | EP0072525A1 Indirect heating furnace for the surface treatment of a metal or the like employing a salt bath |
| 02/22/1983 | US4374867 Method of growing oxide layer on indium gallium arsenide |
| 02/08/1983 | US4372790 Method and apparatus for the control of the carbon level of a gas mixture reacting in a furnace chamber |
| 02/01/1983 | US4371787 Ion-nitriding apparatus |
| 02/01/1983 | CA1140438A1 Process for carburizing ferrous metals |
| 01/20/1983 | WO1983000184A1 Centrifugal pump |
| 01/20/1983 | WO1983000106A1 Erosion resistant tubular apparatus for handling slurries |
| 01/12/1983 | EP0069707A1 Method of oxidising semiconductor substrates |
| 01/11/1983 | US4368220 Reactive ion etching |
| 01/05/1983 | EP0068277A1 Method for passivating aluminum-based metallizations |
| 12/28/1982 | US4366008 Method for hardening steel |
| 12/21/1982 | US4364969 Coating with metal, bombardment with ions |
| 12/21/1982 | US4364780 Aluminum oxide |
| 12/15/1982 | EP0067098A1 Method of ionitriding a steel article which has been plastically deformed in advance |
| 11/09/1982 | US4358317 Materials for a bit |
| 11/03/1982 | EP0063730A2 Process for stabilising pyrophoric acicular ferromagnetic metal particles essentially consisting of iron |
| 11/03/1982 | EP0063655A1 Process for carburizing ferrous metals |
| 11/02/1982 | US4357367 Method of blackening steel components for cathode ray tubes |
| 11/02/1982 | US4357366 Oxidation, tellurium, thin films |
| 11/02/1982 | US4357182 Nitriding |
| 10/27/1982 | EP0063386A1 Method for forming a carbide layer on the surface of a ferrous alloy article or a cemented carbide article |
| 10/26/1982 | CA1134139A1 Energy efficient heat-treating furnace system |
| 10/19/1982 | CA1133809A1 Method of nitriding steel |
| 10/19/1982 | CA1133808A1 Process for increasing the corrosion resistance of nitrided component parts of iron material |
| 10/13/1982 | EP0062550A1 Process for the thermochemical treatments of metals by ion bombardment |
| 10/12/1982 | CA1133366A1 Method of selective grain growth in nickel-base superalloys by controlled boron diffusion |
| 10/06/1982 | EP0061906A1 A method of, and an apparatus for, processing a workpiece with energetic particles and a product processed thereby |
| 09/29/1982 | EP0061272A1 Electric motor |
| 09/28/1982 | US4351696 Passivation |
| 09/15/1982 | EP0059803A1 A process for case hardening steel |
| 09/14/1982 | US4348980 Apparatus for the boronizing of pieces made of metal or cermet and surface-bornished pieces |
| 09/07/1982 | US4348241 Heat-treatment of semifinished product-sliding surface of shaping members in plastic metal-working apparatus |
| 09/02/1982 | WO1982002905A1 Fused salt bath composition |
| 08/25/1982 | EP0058214A1 Method for increasing the resistance of a solid material surface against etching |
| 08/17/1982 | CA1129644A1 Direct heating of heat treat furnace chamber |
| 08/03/1982 | US4342918 Ion-nitriding apparatus |
| 08/03/1982 | US4342605 Heating in an atmosphere of ammonia, carbon monoxide and nitrogen gas |
| 07/27/1982 | CA1128434A1 High pressure fuel injection tubing material and method of manufacturing the same |
| 07/20/1982 | US4340433 Fluidized bed of refractory particles |
| 07/20/1982 | CA1127940A1 Method of making surface layers with improved corrosion properties on articles of iron-chromium alloys, and a surface layer made by the method |
| 07/13/1982 | US4339326 Surface processing apparatus utilizing microwave plasma |
| 07/13/1982 | CA1127511A1 Processing for electromagnetic silicon steel |
| 06/30/1982 | EP0054962A1 Non polluting process for carburizing steel in a molten salt bath |
| 06/22/1982 | US4336412 Heat treatment furnace |
| 06/09/1982 | EP0053521A2 Improvements in metal components |
| 06/08/1982 | US4333787 Sulfiding brass, acidification |
| 06/08/1982 | CA1125011A1 Inert carrier gas heat treating control process |
| 06/01/1982 | US4332653 Method of nitriding by high temperature electrolysis |
| 05/25/1982 | US4331856 Control system and method of controlling ion nitriding apparatus |
| 05/25/1982 | CA1124409A1 Semiconductor plasma oxidation |
| 05/04/1982 | US4328048 Method of forming copper conductor |
| 04/27/1982 | US4326898 Oxidation resistant iron |
| 04/14/1982 | EP0049532A1 Process for the carbonization and heat-treatment of steels in a non-carbon-affecting atmosphere |
| 04/14/1982 | EP0049531A1 Method of case-hardening metallic pieces |
| 04/14/1982 | EP0049530A1 Method and device for carbonizing metallic pieces |
| 04/14/1982 | EP0049373A1 Surface hardened sintered iron workpiece and method of manufacturing this workpiece |
| 04/06/1982 | US4323589 Fabrication of intergrated circuits |
| 03/31/1982 | EP0048622A1 Method for improving the electrical conductivity of a steel surface having a coating of ferrous oxide |
| 03/30/1982 | US4322255 Controlling the feeding of nitrogen, carbon monoxide and lower aliphatic hydrocarbon; monitoring the discharge; homogeneous carbo-nitriding |
| 03/30/1982 | US4322254 Regeneration of electrical conductivity of metallic surfaces |
| 03/23/1982 | CA1120346A1 Method for preventing decarburization of steel materials |
| 03/10/1982 | EP0047067A1 Method for removing carbonaceous deposits from heat treating furnace |
| 03/09/1982 | US4318828 Enhanced oxide whisker growth on cold-rolled aluminum-containing stainless steel foil |
| 03/02/1982 | US4317687 Carburizing process utilizing atmospheres generated from nitrogen-ethanol based mixtures |
| 02/02/1982 | US4314005 Process for coating ferrous metal articles and resulting articles |
| 01/13/1982 | EP0043789A2 Method for the chemical-discharge treatment of sensitive workpieces by means of a glow discharge |
| 01/13/1982 | EP0043742A1 Method of gas-chromizing steels |
| 01/05/1982 | US4309227 Ion-nitriding process |
| 12/29/1981 | CA1115316A1 Bearing race |
| 12/22/1981 | US4306919 Process for carburizing steel |
| 12/22/1981 | US4306918 Wherein the atmosphere is derived from oxygenated hydrocarbons such as aldehydes, alcohols, esters and ethers |
| 12/15/1981 | CA1114208A1 Method of making selectively carburized forged powder metal parts |
| 12/08/1981 | CA1114071A1 Stabilization process for aluminum microcircuits which have been reactive-ion etched |