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5569501 Diamond-like carbon films from a hydrocarbon helium plasma  
The present invention relates to an improved method of depositing a diamond-like carbon film onto a substrate by low temperature plasma-enhanced chemical vapor deposition (PECVD) from a...
5565249 Method for producing diamond by a DC plasma jet  
A process for gas phase synthesis of diamond using a DC plasma jet where a plasma jet generated by DC arc discharge using a DC plasma torch is made to strike a substrate and grow diamond on the...
5560241 Synthetic single crystal diamond for wire drawing dies  
A synthetic single crystal diamond for wire drawing die; the process of manufacturing it and a wire drawing die to utilize it are disclosed. At least one plane of the diamond for wire drawing die...
5560779 Apparatus for synthesizing diamond films utilizing an arc plasma  
There is provided a system for the manufacture of a diamond film. A plasma generator generates a hydrogen atom containing plasma stream into which a hydrocarbon containing gas is fed. The plasma...
5560897 Plasma-assisted conversion of solid hydrocarbon to diamond  
A process of preparing diamond, e.g., diamond fiber, by subjecting a hydrocarbon material, e.g., a hydrocarbon fiber, to a plasma treatment in a gaseous feedstream for a sufficient period of time...
5556464 Vibration plate of a speaker and method for producing same  
The present invention relates to a diamond vibration plate for a speaker having high sound velocity or E/ρ and which is superior in high-pitched tone performance. Conventional diamond vibration...
5554415 Substrate coating techniques, including fabricating materials on a surface of a substrate  
Energy, such as from one or more lasers, is directed at the surface of a substrate to mobilize and vaporize a constituent element (e.g., carbide) within the substrate (e.g., steel). The vaporized...
5547714 Ion beam deposition of diamond-like carbon films  
A process forms an amorphous carbon film over a solid, which film has physical and chemical properties similar to those of diamond. Its ancillary objects are the solid bodies so coated and the...
5540904 Isotopically-pure carbon-12 or carbon-13 polycrystalline diamond possessing enhanced thermal conductivity  
Broadly, the present invention is directed to polycrystalline diamond of improved thermal conductivity. The novel polycrystalline diamond consists essentially of at least 99.5 wt-%...
5538763 Method of preparing carbon cluster film having electrical conductivity  
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...
5538765 DC plasma jet CVD method for producing diamond  
A process for producing diamond includes a step of bringing a columnar cathode and a tubular pilot anode provided concentrically around the cathode, into proximity to a plasma jetting port of a...
5536485 Diamond sinter, high-pressure phase boron nitride sinter, and processes for producing those sinters  
A powder of diamond or high-pressure phase boron nitride core particles charged into a coating space as it is dispersed, and a precursor of a coat forming substance allowed to contact and/or...
5529815 Apparatus and method for forming diamond coating  
A method for forming synthetic diamond coatings on surfaces, such as select surfaces of boat hulls, motor vehicle underbodies, chemical storage tanks and the like, which are subject to corrosion...
5527565 Method of manufacturing a radiation sensor element  
A method of manufacturing a radiation sensor element. The method includes providing a diamond body which comprises crystalline diamond material which has a nitrogen impurity concentration of less...
5527747 Rapid process for the preparation of diamond articles  
A rapid process for the preparation of diamond articles in which a porous, dense preform of diamond particles created by particle packing methods is subjected to forced flow chemical vapor...
5527559 Method of depositing a diamond film on a graphite substrate  
A method of making a diamond film on a graphite substrate is disclosed, which comprises the steps of forming a layer of carbon-containing compound on a surface of the graphite substrate and...
5525815 Diamond film structure with high thermal conductivity  
A continuous diamond structure deposited by chemical vapor deposition is disclosed having at least two thermal conductivity diamond layers controlled by the diamond growth rate where one thermal...
5523071 Method for enhancing the toughness of manufactured diamond  
The purity and toughness of a batch of diamond grains is increased by separating a portion containing undesirable inclusions form a remaining higher purity portion and annealing the higher purity...
5523121 Smooth surface CVD diamond films and method for producing same  
Chemical vapor deposition method for producing a fine grained smooth growth surfaced diamond film on a substrate employs a hydrogen/hydrocarbon gaseous atmosphere containing an amount of nitrogen...
5518759 High growth rate plasma diamond deposition process and method of controlling same  
A process for depositing diamond on a substrate using a microwave plasma generator including introducing a feed which includes diamond forming constituents in a desired ratio to the microwave...
5516500 Formation of diamond materials by rapid-heating and rapid-quenching of carbon-containing materials  
Diamond materials are formed by sandwiching a carbon-containing material in a gap between two electrodes. A high-amperage electric current is applied between the two electrode plates so as cause...
5516554 Cyclic hot-filament CVD of diamond  
The steady state operating parameters of a low pressure cyclic hot-filament chemical vapor deposition process for making diamond, i.e., nucleation-growth and graphite removal, are applied as...
5510098 CVD method of producing and doping fullerenes  
Methods of producing fullerenes in large-macroscopic quantities inexpensively is disclosed without using solid carbon material such as graphite. In a preferred embodiment, fullerenes are formed by...
5507987 Method of making a free-standing diamond film with reduced bowing  
A method for producing free-standing diamond film having a surface area of at least 1000 square millimeters includes the following steps: providing a substrate; depositing, on the substrate, by...
5503104 Synthetic diamond product  
A method produces a columnar, quasi-oriented diamond that exhibits the enhanced optical, thermal and mechanical properties of gem diamonds. This method allows diamond growth rates that are faster...
5501877 Patterned deposition of thin films  
A method for creating a patterned thin film of a high surface energy material on a substrate comprising the steps of creating a photomask pattern on the substrate using photolithography, providing...
5499601 Method for vapor phase synthesis of diamond  
Diamond particles are dispersed in a metal and the metal matrix is molten and recrystallized so that the diamond particles are aligned to the same crystal orientation to form a substrate...
5491028 Enhanced adherence of diamond coatings  
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...
5491002 Multilayer CVD diamond films  
Multilayer CVD diamond films are provided, wherein grain boundaries of the diamond layers are interrupted by renucleating and growing diamond on new nucleation sites comprised of metal. These...
5482695 Carbon composition production process  
The present invention relates to production of superhard materials.A carbon composition contains 18-38 wt. % of diamond having particle size of 40-120 Å and graphite to make up 100 wt. % having...
5482748 Method for diamond coating by microwave plasma  
A method for coating components such as cutting tools with diamond using a microwave plasma excited gas mixture in a reactor equipped with a bowl-shaped substrate table having a concave inner...
5479875 Formation of highly oriented diamond film  
A method of forming a highly oriented diamond film having a reduced thickness with a high quality at a low cost. Surface of a single crystal substrate is cleaned, and is then left in a high vacuum...
5478513 CVD diamond growth on hydride-forming metal substrates  
A method for producing CVD diamond film on a substrate comprised of a hydride-forming metal. The substrate provides for easy release of the CVD diamond coating formed thereon upon exposure to a...
5478650 Nanophase diamond films  
Films of nanometer-scale nodules of diamond-bonded carbon structures are disclosed. Such films may be used, for example, to coat objects to improve their resistance to wear. Moreover, because the...
5476693 Method for the deposition of diamond film by high density direct current glow discharge  
There is disclosed a method for depositing a diamond film on a substrate which utilizes high density direct current glow discharge at a glow-arc transition region to form plasma between a cathode...
5474816 Fabrication of amorphous diamond films  
Amorphous diamond films having a significant reduction in intrinsic stress are prepared by biasing a substrate to be coated and depositing carbon ions thereon under controlled temperature conditions.
5474021 Epitaxial growth of diamond from vapor phase  
A plurality of single-crystalline diamond plates having principal surfaces consisting essentially of {100} planes are prepared. The diamond plates are so arranged that the respective principal...
5466431 Diamond-like metallic nanocomposites  
A class of nanocomposite amorphous materials consisting of interpenetrating random networks of predominantly sp3 bonded carbon stabilized by hydrogen, silicon stabilized by oxygen, and,...
5465603 Optically improved diamond wire die  
A die for drawing wire of a predetermined diameter comprising an optically non-opaque CVD diamond body having a thermal conductivity greater than 4 watts/cm-K with an opening extending through...
5464665 Microwave RF, or AC/DC discharge assisted flame deposition of CVD diamond  
Broadly, the present invention is directed to improving a chemical vapor phase deposition (CVD) method for synthesis of diamond wherein a hydrocarbon/hydrogen gaseous mixture is subjected to a...
5462776 Conversion of fullerenes to diamonds  
A method of forming synthetic diamond or diamond-like films on a substrate surface. The method involves the steps of providing a vapor selected from the group of fullerene molecules or an inert...
5454343 Method for production of diamond particles  
A invention provides a method for production of diamond particles. The solvent metallic disk of a starting material specimen used in this diamond synthesis is divided into two layers. An...
5455081 Process for coating diamond-like carbon film and coated thin strip  
A process for coating a substrate surface with a diamond-like carbon film, in which a starting material gas comprising a hydrocarbon compound is introduced into a Hall accelerator ion source with...
5449491 Method of producing diamond crystals from metallfullerite matrix and resulting product  
A method of producing diamond crystals from a metallofullerite matrix independent of external application of pressure is disclosed. The method comprises hyperquenching a portion of a metallic sold...
5449531 Method of fabricating oriented diamond films on nondiamond substrates and related structures  
A method for making an oriented diamond film includes the steps of saturating a surface region of a transition metal substrate, capable of dissolving carbon, with carbon and hydrogen; forming...
5445851 Method for forming tabular diamond crystals  
A tabular diamond crystal is formed on a substrate by gas phase synthesis, wherein the diamond crystal has a ratio of thickness to width of from 1:4 to 1:1,000 and the surface of the substrate on...
5445106 Method for making high thermal conducting diamond  
A method is disclosed for producing continuous CVD diamond films with at least two controlled diamond thermal conductivity layers having improved thermal conductivity in the direction parallel to...
5443032 Method for the manufacture of large single crystals  
A method is disclosed for producing large single crystals. In one embodiment, a single crystal of electronic grade diamond is produced having a thickness of approximately 100-1000 microns and an...
5441013 Method for growing continuous diamond films  
In contrast to previous approaches, the present inventors have discovered that diamond films can be grown by carbon CVT reactions occurring exclusively in the exothermic regime, where the lower...
5437891 Chemical vapor deposition of polycrystalline diamond with <100> orientation and <100> growth facets  
Chemical vapor deposition of diamond with <100> orientation and (100) growth facets is performed at an increased growth rate and affords cubic diamond crystals when a gas mixture comprising...