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5437243 Process for fabricating diamond by supercritical electrical current  
Human-made diamond, as well as naturally found diamond, is a transparent, superhard, crystalline, and electrically nonconductive form of carbon. In this invention, an electrical current of...
5433977 Enhanced adherence of diamond coatings by combustion flame CVD  
This invention is directed to the creation of diamond coatings with enhanced adherence on substrates, such as tungsten carbide-cobalt (WC-Co), by chemical vapor deposition. This process comprises...
5427054 Method of making a diamond film  
A process of forming high quality diamond films, wherein non-diamond components and crystal defects are significantly reduced. Diamond films are formed on a diamond substrate by vapor-phase...
5427827 Deposition of diamond-like films by ECR microwave plasma  
Hard amorphous hydrogenated carbon, diamond-like films are deposited using an electron cyclotron resonance microwave plasma with a separate radio frequency power bias applied to a substrate stage....
5425965 Process for deposition of ultra-fine grained polycrystalline diamond films  
This invention is directed to a method for enhancing the diamond nucleation on a substrate prior to providing a diamond film thereon. More particularly, it is directed to a method which involved...
5423475 Diamond coatings for aluminum alloys  
An aluminum body having diamond bonded thereto with a diffused interlayer of silicon is described.
5424096 HF-CVD method for forming diamond  
Diamond is produced by chemical vapor deposition on a substrate by hot filament activation of a hydrogen-hydrocarbon gas mixture. An edge of the substrate faces the filament at a distance;...
5419276 Single-crystal diamond of very high thermal conductivity  
Single-crystal diamond consisting of isotopically pure carbon-12 or carbon-13 has been found to have a thermal conductivity higher than that of any substance previously known, typically at least...
5418018 Chemical vapor deposition of diamond films using water-based plasma discharges  
A chemical vapor deposition (CVD) technique (process and apparatus) for the growth of diamond films using vapor mixtures of selected compounds having desired moieties, specifically precursors that...
5417953 Apparatus and method for synthesizing diamond in supercritical water  
A process and apparatus for the synthesis of diamond from carbon precursors in supercritical water is described. The method involves the oxidation and/or pyrolysis of gaseous, liquid or solid...
5415674 Cemented carbide substrate having a diamond layer of high adhesive strength  
An improved process for improving the adhesion between a cemented carbide substrate and a diamond layer deposited thereon by removing the binder phase of the cemented material from the surface of...
5397558 Method of forming diamond or diamond containing carbon film  
A CVD method for forming a diamond or diamond containing carbon film comprises the step of inputting a reactive gas, supplying energy to the reactive gas, and depositing the carbon film on a...
5393572 Ion beam assisted method of producing a diamond like carbon coating  
The present invention relates to an ion beam assisted method of producing a diamond like carbon (DLC) coating on the surface of a material. More particular, the invention relates to an ion beam...
5387447 Method for producing uniform cylindrical tubes of CVD diamond  
The present invention provides a method for forming uniform CVD diamond coatings on a substrate wherein diamond is deposited on a plurality of substrates which are rotated in unison during the...
5387443 Laser CVD method for synthesizing diamond  
A method for synthesizing a diamond by vapor deposition permits selectively growing high quality diamond on any desired region of a base material at a lower temperature compared to respective...
5385715 Synthesis of ultra-hard abrasive particles  
Friable abrasive particles, particularly diamond particles, are produced by causing suitable material, such as a chloride salt, to be occluded in the particles during their manufacture and then...
5382293 Plasma jet CVD apparatus for forming diamond films  
An apparatus for depositing a diamond film on a substrate includes a first electrode formed as an enclosed body having a nozzle for jetting thermal plasma opening therefrom and a second electrode...
5380595 Carbon cluster film having electrical conductivity and method of preparing the same  
A carbon cluster film has a precisely controlled stable electrical conductivity which does not deteriorate in a short period of time in air. Such a carbon cluster film having a stable electrical...
5380557 Carbon fluoride compositions  
Carbon fluoride solid compositions having a low fluorine-to-carbon ratio are produced by chemical vapor deposition processes. These carbon fluoride compositions have improved wettability...
5374414 Self-supporting diamond filaments  
Filamentous substrates are coated with diamond by a chemical vapor deposin process. The substrate may then be etched away to form a diamond filament. In a preferred embodiment, the substrate is...
5372799 Process for the synthesis of granular diamond  
Granular diamond suitable for use as an abrasive grain for polishing is synthesized from gaseous phase by a process for the synthesis of granular diamond, comprising subjecting a mixed gas...
5370855 Conversion of fullerenes to diamond  
A method of forming synthetic hydrogen defect free diamond or diamond like films on a substrate. The method involves providing vapor containing fullerene molecules with or without an inert gas,...
5368681 Method for the deposition of diamond on a substrate  
A method is disclosed for the deposition of crystalline diamond on a substrate such as a silicon wafer. A polymer (for example poly(methylmethacrylate)) is provided as a target for laser ablation...
5368890 "Coating process for depositing extremely hard films on substrates"  
A method for depositing continuous cohesive, non-granular tightly adhering deposits on a substrat by using a rotating fibrous transfer means; deposit starting material is a small particle...
5368937 Improved carbon containing thin film formed by increasing bias voltage during a plasma CVD process  
The present invention discloses a carbon film on a substrate formed by increasing a bias voltage during a plasma CVD process, wherein the entire carbon film is amorphous and the hardness of the...
5368897 Method for arc discharge plasma vapor deposition of diamond  
A method for vapor deposition of diamond by effecting an arc discharge while feeding a discharge gas between an anode and a cathode of a thermal plasma chemical vapor deposition device,...
5366556 Process and apparatus for production of diamond-like films  
A process for production of diamond-like films comprising the steps of physically ablating a source of carbon in the vicinity of a substrate such that a carbon film grows on the substrate through...
5363687 Diamond wire die  
A CVD diamond wire drawing die has smaller diamond grains adjacent an initial diamond growth surface with larger diamond grains adjacent an opposing surface with an opening having a wire bearing...
5364423 Method for making diamond grit and abrasive media  
Synthetic diamond film produced by chemical vapor deposition can be crushed to obtain diamond grit which has useful abrasive properties. The flexibility of CVD deposition processes in determining...
5361621 Multiple grained diamond wire die  
A CVD diamond wire drawing die has smaller diamond grains adjacent an initial diamond growth surface with larger diamond grains adjacent an opposing surface with an opening having a wire bearing...
5358596 Method and apparatus for growing diamond films  
A supersonic, direct-current arcjet is designed for expansion into low pressure, the arcjet operates as mixtures of hydrogen and argon to convert molecular hydrogen to atomic hydrogen and direct...
5352493 Method for forming diamond-like nanocomposite or doped-diamond-like nanocomposite films  
The present invention relates to the formation of a class of nanocomposite amorphous materials consisting of interpenetrating random networks of predominantly sp3 bonded carbon stabilized by...
5352429 Dynamic compaction processing system  
Carbonaceous material embedded within an explosive charge, is subjected to ressure and temperature conditions during detonation of the charge at a supervelocity modified to obtain a compaction...
5349922 Free standing diamond sheet and method and apparatus for making same  
The bond strength between a diamond and the substrate onto which it is deposited by the chemical vaporization method is decreased to the point where the diamond can be removed from the substrate...
5346729 Solar-induced chemical vapor deposition of diamond-type carbon films  
An improved chemical vapor deposition method for depositing transparent continuous coatings of sp3 -bonded diamond-type carbon films, comprising: a) providing a volatile hydrocarbon gas/H2...
5342660 Method for plasma jet deposition  
The disclosure is directed to a method for depositing a substance, such as synthetic diamond. A plasma beam is produced, and contains the constituents of the substance to be deposited. A substrate...
5340401 Diamond deposition cell  
In a first embodiment of an improved diamond deposition cell, a chamber is evacuated to a low pressure and a graphite element in the chamber is heated to a selected high temperature and heats a...
5338364 Process and apparatus for producing diamond film  
A process and apparatus for producing a diamond film from a gas phase, in which a fuel gas is burnt by oxygen gas in a torch, to thereby provide a gas flame jet having a high temperature and high...
5334342 Method of fabricating of diamond moth-eye surface  
A high temperature resist process is combined with microlithographic patterning for the production of materials, such as diamond films, that require a high temperature deposition environment. For...
5330802 Plasma CVD of carbonaceous films on substrate having reduced metal on its surface  
A plasma CVD method for forming a carbonaceous material containing diamond or microcrystalline grains therein is disclosed, which comprises placing a substrate in a reaction chamber said substrate...
5328548 Method of synthesizing single diamond crystals of high thermal conductivity  
A method of synthesizing single diamond crystals using a carbon source containing at least 99.9 atomic % carbon-12. This is accomplished by graphitizing carbon-12 to form a highly crystalline...
5328855 Formation of semiconductor diamond  
Semiconductor diamond is formed by a process comprising irradiating diamond crystal with light having irradiation density of more than 0.1 W/cm2, annihilating defects in the diamond crystals, and...
5324496 Process using an acidic medium containing nitric acid  
A process such as a leaching, etching or pickling process which uses an aqueous acidic medium containing nitric acid is improved by carrying out the process in the presence of an oxidizing...
5318801 Substrate temperature control apparatus and technique for CVD reactors  
One of the critical experimental parameters affecting the quality and gro rate of chemical vapor deposition species, such as, diamond is the substrate temperature. An apparatus and technique for...
5318423 Device for transformation of the graphite into the diamonds  
High-pressure high-temperature device for conversion the graphite to diamonds (DCGD) includes a container having a high pressure chamber, an inlet for introducing a fuel, an oxidizer and an...
5316795 Halogen-assisted chemical vapor deposition of diamond  
The present invention is directed to a method for depositing diamond films and particles on a variety of substrates by flowing a gas or gas mixture capable of supplying (1) carbon, (2) hydrogen,...
5314726 Process for forming a mixed layer of a plasma sprayed material and diamond  
A process for forming a diamond gas phase synthesized coating film which is easily controlled and affords a high quality, good adhesion strength diamond film includes a step of forming a mixed...
5314768 Thin film mask for use in an x-ray lithographic process and its method of manufacture by forming opaque pattern of ions in a diamond layer  
A thin film mask for use in an X-ray lithographic process is disclosed herein along with a method of making the mask which is comprised of a diamond thin film layer supported on one surface of an...
5314570 Process and apparatus for the production of diamond  
The present invention aims at improving a hot filament CVD method and apparatus capable of enlarging the diamond-forming area in relatively easy manner and utilizing effectively the capacity of a...
5308661 Pretreatment process for forming a smooth surface diamond film on a carbon-coated substrate  
A process is disclosed for the pretreatment of a carbon-coated substrate to provide a uniform high density of nucleation sites thereon for the subsequent deposition of a continuous diamond film...