Matches 1 - 50 out of 102 1 2 3 >
Match Document Document Title
7404857 Superabrasive particle synthesis with controlled placement of crystalline seeds  
An improved method for synthesizing superabrasive particles provides high quality industrial superabrasive particles with high yield and a narrow size distribution. The synthesis method includes...
7368013 Superabrasive particle synthesis with controlled placement of crystalline seeds  
An improved method for synthesizing superabrasive particles provides high quality industrial superabrasive particles with high yield and a narrow size distribution. The synthesis method can include...
7323049 High pressure superabrasive particle synthesis  
An improved method for controlling nucleation sites during superabrasive particle synthesis can provide high quality industrial superabrasive particles with high yield and a narrow size...
7306441 High pressure crystal growth apparatuses and associated methods  
High pressure synthesis of various crystals such as diamond, cBN and the like can be carried out using reaction assemblies suitable for use in methods such as temperature gradient methods. The...
7294199 Nitride single crystal and producing method thereof  
A method of producing a nitride single crystal includes the step of forming a material transport medium layer containing a compound of rare earth element on a surface of a nitride crystal, and the...
7288152 Method of manufacturing GaN crystals and GaN crystal substrate, GaN crystals and GaN crystal substrate obtained by the method, and semiconductor device including the same  
The present invention provides a manufacturing method in which high quality GaN crystals and GaN crystal substrates can be manufactured under mild conditions of low pressure and low temperature. In...
7264675 Diamond manufacturing method  
In a diamond manufacturing method, a melt of carbon and blue kimberlite is contained in a vessel at 1000° C. The vessel is pressurized by a gas of predominantly hydrogen to 200 atmospheres. A...
7115165 Single crystal of nitride containing metal element of group III or IV and method for preparing the same  
β-ZrNCl polycrystalline powder prepared by chemical transport method and NH 4 Cl are mixed in a molar ratio of 1:2. The mixture is encapsulated in a Au capsule (6 mm in inner diameter and 6 mm in...
7060130 Heteroepitaxial diamond and diamond nuclei precursors  
A process for growing by chemical vapor deposition a heteroepitaxial single crystal diamond is disclosed. The process provides a substrate which enables the growth of single crystal diamond which...
6905544 Manufacturing method for a carbon nanomaterial, a manufacturing apparatus for a carbon nanomaterial, and manufacturing facility for a carbon nanomaterial  
The invention has as an object proving a carbon nanomaterial fabrication method that can continuously mass-produce a high purity carbon a nanomaterial. The tube-shaped or fiber-shaped carbon...
6852163 Extra high voltage generator  
A very-high pressure generator of construction such that the lower and upper guide blocks of the generator are each configured so as to form a pyramidal recess on the bottom surface and an...
6835365 Crystal growth  
The invention provides a mass of crystals, particularly diamond crystals, having a size of less than 100 microns and in which mass the majority of the crystals are faceted single crystals. The...
6576211 Crystal-containing material  
A method of making a bonded, coherent material comprising a mass of crystals, preferably diamond crystals, in a matrix is provided. The steps include providing a source of the crystals of the type...
6527854 Method for contact diffusion of impurities into diamond and other crystalline structures and products  
A low free energy method for more rapidly diffusing an impurity as exemplified by boron, into a natural or synthetic diamond or other crystalline element in powdered or granular form, without...
6368403 Method and apparatus for purifying silicon  
An apparatus for purifying metallurgical grade silicon to produce solar grade silicon has a container for holding molten silicon and one or more torches for providing oxygen and hydrogen gas to...
6270548 Sintering process for diamond and diamond growth  
A method of making a bonded, coherent material comprising a mass of diamond crystals in a matrix, which optionally contains another phase. The method includes the steps of providing a source of...
6159286 Process for controlling diamond nucleation during diamond synthesis  
The present invention describes a novel abrasive tool that contains abrasive particles distributed in a predetermined pattern. Such a pattern is produced by fabricating two-dimensional slices and...
6096128 Silicon crystal, and device and method for manufacturing same  
A germanium layer 19 is melted on top of a starting polycrystalline silicon ingot 18, at a temperature below the melting point of pure silicon. Silicon is dissolved at the interface and floats to...
5972107 Method for purifying silicon  
An apparatus for purifying metallurgical grade silicon to produce solar grade silicon has a container for holding molten silicon and one or more submergible torches for providing a flame surrounded...
5968265 Method for producing silicon carbide monocrystals  
A method for producing cubic SiC monocrystals includes dissolving SiC powder or other starting material in a solvent at high overpressures and growing the monocrystals on a seed crystal.
5962374 Preparation of oxide crystals  
A process for preparing an oxide crystal by means of solution growth in the presence of a solvent is provided. The solvent includes a mixture of an oxide containing at least one member of those...
5935323 Articles with diamond coating formed thereon by vapor-phase synthesis  
Articles with a tenaciously adherent diamond coating are made by forming a diamond coating on a base material by vapor-phase synthesis without causing any warpage of the coating. The diamond...
5908503 Low defect density diamond single crystal and a process for the production of the same  
A colorless, transparent low defect density, synthetic type IIa diamond single crystal, in which the etch pits due to needle-shaped defects are at most 3×10 5 pieces/cm 2 , and which can be...
5902563 RF/VHF plasma diamond growth method and apparatus and materials produced therein  
Processes are disclosed for performing non-microwave, non-arcjet plasma-assisted chemical vapor deposition of diamond in which substantially no particles impact the growing diamond surface with...
5824368 Process of diamond growth from C.sub.70  
A method of growing single crystal diamonds in excess of 10 μm in diameter from industrial diamond "seeds" having mean diameters of approximately 1.5 μm is disclosed. The diamonds are grown by...
5772756 Diamond synthesis  
A method of producing diamond crystal growth on a seed crystal is provided. The method includes the steps of providing a seed crystal containing at least one twin plane and re-entrant growth...
5749966 Process for depositing diamond and refractory materials  
An improved plasma enhanced chemical vapor deposition (CVD) reactor is provided for the synthesis of diamond and other high temperature materials such as boron nitride, boron carbide and ceramics...
5653800 Method for producing N-type semiconducting diamond  
A method of making n-type semiconducting diamond is disclosed, which is doped with boron-10 at the time of diamond formation and bombarded with neutrons for in-situ conversion of boron-10 to...
5609683 Apparatus for making industrial diamond  
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...
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...
5404835 Method of making large area single crystalline diamond films  
A method of growing a large single crystalline diamond film, in which a nickel substrate is disposed within a diamond growth chamber. After air has been evacuated from the chamber and the substrate...
5379712 Method of epitaxially growing thin films using ion implantation  
A method of epitaxially growing a surface layer on a substrate including the steps of coating the substrate surface, with a meltable film, melting the film and implanting ions into he melted film,...
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...
5326719 Thin film growth using two part metal solvent  
A method of coating a material surface with thin film silicon comprises dissolving silicon in a metal solvent to form a solution and subsequently deposited the dissolved silicon from the solution...
5310447 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...
5298286 Method for fabricating diamond films on nondiamond substrates and related structures  
A method for making an oriented diamond film includes the steps of seeding a face of a nondiamond substrate with diamond particles, and orienting the diamond particles with respect to the substrate...
5273730 Method of synthesizing diamond  
Synthesis of diamond by the so-called thin solvent film method is improved to obtain diamond crystals with a large grain size and good quality in an economical manner. To this end, using a reaction...
5254211 Method for forming crystals  
A method of forming a crystal comprises a crystal forming treatment effected by dipping a substrate having a nonnucleation surface having a small nucleation density and a nucleation surface having...
5168096 Method for preparing an oriented and textured magnetic material  
A method for preparing an oriented and textured magnetic compound, comprising the steps of preparing a composition at a temperature such that it comprises crystallites of the compound in the...
5053355 Method and means for producing a layered system of semiconductors  
A method and means for producing a layered semiconductor system are proposed wherein the required semiconductor layers are deposited on a carrier layer (10) through interaction with a melt (42)....
4927619 Diamond single crystal  
An artificial diamond single crystal, at least a part of a surface of the crystal having a rough surface which diffusibly reflects light which is formed by suppressing crystal growth at that...
4838988 Process for obtaining crystals of intermetallic compounds, in particular isolated monocrystals, by cooling alloys in the molten state  
The invention relates to a process for obtaining crystals of intermetallic compounds, in particular isolated monocrystals, by cooling alloys in the molten state. The process involves using an alloy...
4836881 Process for synthesizing large diamond  
A process for synthesizing a large diamond having a diameter of 8 mm or more by the temperature gradient method, wherein a (111) or (100) surface of a seed crystal having a diameter of 3 mm or more...
4783426 Method of making a Group II-VI compound semiconductor device by solution growth  
A semiconductor device made of a II-VI compound semiconductor and having a p type semiconductor crystal. The p type semiconductor crystal is one obtained by growing the II-VI compound semiconductor...
4756895 Hexagonal silicon carbide platelets and preforms and methods for making and using same  
Crystalline silicon carbide wherein at least 90 weight percent of the silicon carbide is formed from a plurality of hexagonal crystal lattices wherein at least 80 weight percent of the crystals...
4755856 Znse green light emitting diode  
A green color light emitting ZnSe diode having a pn junction is fabricated by the use of a ZnSe crystal having a good crystal perfection and being obtained by a solution growth method relying on...
4632817 Method of synthesizing diamond  
A diamond synthesizing method carried out under diamond-stable superhigh pressure and temperature by employing a synthesizing vessel (10) having a plurality of synthesizing chambers (10a, 10b)...
4585716 Cell corrosion reduction  
Corrosion is reduced in aqueous electrochemical cells having zinc anodes by utilizing mercury amalgamated discrete single crystal zinc particles to which small amounts of one or more of indium,...
4551195 Method for growing boron nitride crystals of cubic system  
Cubic boron nitride crystals are grown by subjecting reaction materials of low pressure phase boron nitride, a solvent material, and cubic boron nitride seeds to pressure and temperature conditions...
4547257 Method for growing diamond crystals  
Diamond crystals are grown by subjecting reaction materials of nondiamond carbon, a solvent metal, and diamond seeds to pressure and temperature conditions in the diamond-stable region. The...
Matches 1 - 50 out of 102 1 2 3 >