Binary Compound (e.g., Silicide, Etc.) Patents (Class 423/344)
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Patent number: 8614396Abstract: A method for processing iron disilicide for manufacture photovoltaic devices. The method includes providing a first sample of iron disilicide comprising at least an alpha phase entity, a beta phase entity, and an epsilon phase entity. The method includes maintaining the first sample of iron disilicide in an inert environment and subjects the first sample of iron disilicide to a thermal process to form a second sample of iron disilicide. The second sample of iron disilicide comprises substantially beta phase iron disilicide and is characterized by a first particle size. The method includes introducing an organic solvent to the second sample of iron disilicide, forming a first mixture of material comprising the second sample of iron disilicide and the organic solvent. The method processed the first mixture of material including the second sample of iron disilicide using a grinding process.Type: GrantFiled: September 12, 2008Date of Patent: December 24, 2013Assignee: Stion CorporationInventors: Frederic Victor Mikulec, Bing Shen Gao, Howard W. H. Lee
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Publication number: 20130330263Abstract: A catalyst according to the present invention exhibits a catalytic action to a methanol decomposition reaction or a hydrocarbon steam-reforming reaction in a short time. The present invention provides a catalyst for producing hydrogen gas, using an Ni3Si-based intermetallic compound.Type: ApplicationFiled: March 8, 2012Publication date: December 12, 2013Applicant: OSAKA PREFECTURE UNIVERSITY PUBLIC CORPORATIONInventors: Yasuyuki Kaneno, Takayuki Takasugi
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Patent number: 8603426Abstract: A method of making hydrogenated Group IVA compounds having reduced metal-based impurities, compositions and inks including such Group IVA compounds, and methods for forming a semiconductor thin film. Thin semiconducting films prepared according to the present invention generally exhibit improved conductivity, film morphology and/or carrier mobility relative to an otherwise identical structure made by an identical process, but without the washing step. In addition, the properties of the present thin film are generally more predictable than those of films produced from similarly prepared (cyclo)silanes that have not been washed according to the present invention.Type: GrantFiled: December 28, 2012Date of Patent: December 10, 2013Assignee: Kovio, Inc.Inventors: Klaus Kunze, Wenzhuo Guo, Fabio Zürcher, Mao Takashima, Laila Francisco, Joerg Rockenberger, Brent Ridley
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Patent number: 8591758Abstract: The present invention provides a method of making a substantially phase pure compound including a cation and an anion. The compound is made by mixing in a ball-milling device a first amount of the anion with a first amount of the cation that is less than the stoichiometric amount of the cation, so that substantially all of the first amount of the cation is consumed. The compound is further made by mixing in a ball-milling device a second amount of the cation that is less than the stoichiometric amount of the cation with the mixture remaining in the device. The mixing is continued until substantially all of the second amount of the cation and any unreacted portion of anion X are consumed to afford the substantially phase pure compound.Type: GrantFiled: June 8, 2011Date of Patent: November 26, 2013Assignee: California Institute of TechnologyInventors: Jean-Pierre Fleurial, Sabah K. Bux, Richard B. Kaner
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Patent number: 8574528Abstract: A method of growing an epitaxial layer on a substrate is generally provided. According to the method, the substrate is heated in a chemical vapor deposition chamber to a growth temperature in the presence of a carbon source gas, then the epitaxial layer is grown on the substrate at the growth temperature, and finally the substrate is cooled in a chemical vapor deposition chamber to at least about 80% of the growth temperature in the presence of a carbon source gas. Substrates formed from this method can have a carrier lifetime between about 0.25 ?s and about 9.9 ?s.Type: GrantFiled: September 7, 2010Date of Patent: November 5, 2013Assignee: University of South CarolinaInventors: Tangali S. Sudarshan, Amitesh Srivastava
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Publication number: 20130273189Abstract: Mold for casting a polycrystalline silicon ingot, and a silicon nitride powder for a mold release material thereof, a slurry containing a silicon nitride power for a mold release layer thereof, and a mold release material for casting thereof. The present invention relates to a silicon nitride powder for a mold release material of a mold for casting a polycrystalline silicon ingot characterized in that the percentage of primary particles of granular crystals monodispersed in powders is not less than 95% in terms of the area ratio calculated by analysis of an SEM image.Type: ApplicationFiled: July 27, 2011Publication date: October 17, 2013Applicant: UBE INDUSTRIES, LTD.Inventors: Takeshi Yamao, Michio Honda, Shinsuke Jida
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Patent number: 8518287Abstract: A dichalcogenide thermoelectric material having a very low thermal conductivity in comparison with a conventional metal or semiconductor is described. The dichalcogenide thermoelectric material has a structure of Formula 1 below: RX2-aYa??Formula 1 wherein R is a rare earth or transition metal magnetic element, X and Y are each independently an element selected from the group consisting of S, Se, Te, P, As, Sb, Bi, C, Si, Ge, Sn, B, Al, Ga, In, and a combination thereof, and 0?a<2.Type: GrantFiled: April 3, 2009Date of Patent: August 27, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-soo Rhyee, Sang-mock Lee
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Patent number: 8512667Abstract: A method of forming a nanocomposite thermoelectric material having microstructural stability at temperatures greater than 1,000° C. The method includes creating nanocrystalline powder by cryomilling. The method is particularly useful in forming SiGe alloy powder.Type: GrantFiled: November 15, 2010Date of Patent: August 20, 2013Assignee: Pratt & Whitney, Rocketdyne, Inc.Inventors: Sherwin Yang, Daniel Edward Matejczyk, William Determan
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Publication number: 20130140490Abstract: Provided are: a silicon nitride powder for siliconitride phosphors with higher luminance, which can be used for a fluorescent display tube (VFD), a field emission display (FED), a plasma display panel (PDP), a cathode ray tube (CRT), a light emitting diode (LED), and the like; a CaAlSiN3 phosphor, an Sr2Si5N8 phosphor, an (Sr, Ca)AlSiN3 phosphor and an La3Si6N11 phosphor, each using the silicon nitride powder; and methods for producing the phosphors. The present invention relates to a silicon nitride powder for siliconitride phosphors, which is characterized by being a crystalline silicon nitride powder that is used as a starting material for producing a siliconitride phosphor that includes silicon element and nitrogen element but does not contain oxygen element as a constitutent element, and which is characterized by having an oxygen content of 0.2% by weight to 0.Type: ApplicationFiled: July 29, 2011Publication date: June 6, 2013Applicant: Ube Industries, Ltd.Inventors: Masataka Fujinaga, Takayuki Ueda, Takuma Sakai, Shinsuke Jida
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Patent number: 8414858Abstract: A novel method for high quality crystal growth of intermetallic clathrates is presented. The synthesis of high quality pure phase crystals has been complicated by the simultaneous formation of both clathrate type-I and clathrate type-II structures. It was found that selective, phase pure, single-crystal growth of type-I and type-II clathrates can be achieved by maintaining sufficient partial pressure of a chemical constituent during slow, controlled deprivation of the chemical constituent from the primary reactant. The chemical constituent is slowly removed from the primary reactant by the reaction of the chemical constituent vapor with a secondary reactant, spatially separated from the primary reactant, in a closed volume under uniaxial pressure and heat to form the single phase pure crystals.Type: GrantFiled: August 19, 2010Date of Patent: April 9, 2013Assignee: University of South FloridaInventors: George S. Nolas, Matthew K. Beekman
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Patent number: 8388914Abstract: Methods and systems for producing silane that use electrolysis to regenerate reactive components therein are disclosed. The methods and systems may be substantially closed-loop with respect to halogen, an alkali or alkaline earth metal and/or hydrogen.Type: GrantFiled: December 23, 2010Date of Patent: March 5, 2013Assignee: MEMC Electronic Materials, Inc.Inventors: Puneet Gupta, Henry Erk, Alexis Grabbe
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Patent number: 8372371Abstract: The invention relates to a method of making alkali metal silicide compositions, and the compositions resulting from the method, comprising mixing an alkali metal with silicon and heating the resulting mixture to a temperature below about 475° C. The resulting compositions do not react with dry O2. Also, the invention relates to sodium silicide compositions having a powder X-ray diffraction pattern comprising at least three peaks with 2Theta angles selected from about 18.2, 28.5, 29.5, 33.7, 41.2, 47.4, and 56.2 and a solid state 23Na MAS NMR spectra peak at about 18 ppm. Moreover, the invention relates to methods of removing a volatile or flammable substance in a controlled manner. Furthermore, the alkali metal silicide compositions of the invention react with water to produce hydrogen gas.Type: GrantFiled: August 11, 2010Date of Patent: February 12, 2013Assignees: Signa Chemistry, Inc., Board of Trustees of Michigan State UniversityInventors: Michael Lefenfeld, James L. Dye
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Patent number: 8367030Abstract: The present invention relates to a thin film of a metal-silicon compound and a process for producing the thin film of the metal-silicon compound. The metal-silicon compound is a compound of a transition metal and silicon, and has a transition metal-containing silicon cluster as a unit structure, the transition metal-containing silicon cluster having a structure in which a transition metal atom is surrounded by seven to sixteen silicon atoms, two of which are first and second neighbor atoms to the transition metal atom.Type: GrantFiled: February 25, 2009Date of Patent: February 5, 2013Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Toshihiko Kanayama, Noriyuki Uchida
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Patent number: 8354088Abstract: Methods, systems, and apparatus are disclosed herein for recovery of high-purity silicon, silicon carbide and PEG from a slurry produced during a wafer cutting process. A silicon-containing material can be processed for production of a silicon-rich composition. Silicon carbide and PEG recovered from the silicon-containing material can be used to form a wafer-saw cutting fluid. The silicon-rich composition can be reacted with iodine containing compounds that can be purified and/or used to form deposited silicon of high purity. The produced silicon can be used in the photovoltaic industry or semiconductor industry.Type: GrantFiled: July 1, 2011Date of Patent: January 15, 2013Assignee: Iosil Energy CorporationInventor: John Allan Fallavollita
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Publication number: 20130001480Abstract: A method for increasing the ZT of a material, involves creating a reaction cell including a material in a pressure-transmitting medium, exposing the reaction cell to elevated pressure and elevated temperature for a time sufficient to increase the ZT of the material, and recovering the material with an increased ZT.Type: ApplicationFiled: March 11, 2010Publication date: January 3, 2013Applicant: DIAMOND INNOVATIONS, INC.Inventors: Abds-Sami Malik, Francis J. DiSalvo, Yongkwan Dong
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Publication number: 20120315208Abstract: A method for producing a workpiece comprising a layer of an additive-free silicon nitride includes providing a base body of the workpiece. A layer of a slip comprising a silicon powder is applied to an inside of the base body so as to obtain a coated base body. The coated base body is subjected to a reactive firing under nitrogen so as to convert the silicon powder to the additive-free silicon nitride.Type: ApplicationFiled: January 14, 2011Publication date: December 13, 2012Applicant: H.C.STARCK GMBHInventors: Rolf Wagner, Manuel Matussek
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Publication number: 20120276750Abstract: A method and apparatus are presented for reducing halide-based contamination within deposited titanium-based thin films. Halide adsorbing materials are utilized within the deposition chamber to remove halides, such as chlorine and chlorides, during the deposition process so that contamination of the titanium-based film is minimized. A method for regenerating the halide adsorbing material is also provided.Type: ApplicationFiled: July 3, 2012Publication date: November 1, 2012Applicant: MICRON TECHNOLOGY, INC.Inventors: Garo J. Derderian, Cem Basceri, Donald L. Westmoreland
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Publication number: 20120275983Abstract: A reusable silicon nitride containing crucible is described. The crucible contains boron (B) or a boron containing compound and phosphorous (P) or a phosphorous containing compound. Use of the crucible for crystallizing silicon is also described.Type: ApplicationFiled: December 22, 2010Publication date: November 1, 2012Inventors: Håvard Sørheim, Arve Solheim, Egbert Van De Schootbrugge
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Publication number: 20120270727Abstract: Provided a compound catalyst allowing for substitution of a rare noble metal such as platinum, palladium and the like or reduction of costs associated with the use thereof. According to the present invention, the oxidation-reduction characteristics thereof may be controlled and catalytic effects similar to those of a noble metal or a transition metal complex may be exhibited by controlling the valence electron concentration of a compound to change the electronic occupation number of the d-band and maintaining the electronic state at the Fermi level of the electronic state identical to a noble metal or a transition metal complex.Type: ApplicationFiled: April 16, 2012Publication date: October 25, 2012Applicant: HITACHI, LTD.Inventor: Shin YABUUCHI
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Publication number: 20120244060Abstract: Methods are described that have the capability of producing submicron/nanoscale particles, in some embodiments dispersible, at high production rates. In some embodiments, the methods result in the production of particles with an average diameter less than about 75 nanometers that are produced at a rate of at least about 35 grams per hour. In other embodiments, the particles are highly uniform. These methods can be used to form particle collections and/or powder coatings. Powder coatings and corresponding methods are described based on the deposition of highly uniform submicron/nanoscale particles.Type: ApplicationFiled: January 13, 2010Publication date: September 27, 2012Inventors: Xiangxin Bi, Nobuyuki Kambe, Craig R. Horne, James T. Gardner, Ronald J. Mosso, Shivkumar Chiruvolu, Sujeet Kumar, William E. McGovern, Pierre J. DeMascarel, Robert B. Lynch
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Publication number: 20120231159Abstract: A method of producing a reactive powder includes providing a bulk structure of reactive material comprising a first reactant and a second reactant, the bulk structure having a preselected average spacing between the first and the second reactants; and mechanically processing the bulk structure of reactive material to produce a plurality of particles from the bulk structure such that each of the plurality of particles comprises the first and second reactants having an average spacing that is substantially equal to the preselected average spacing of the bulk structure of reactive material. The first and second materials of the plurality of particles react with each other in an exothermic reaction upon being exposed to a threshold energy to initiate the exothermic reaction and remain substantially stable without reacting with each other prior to being exposed to the threshold energy.Type: ApplicationFiled: October 25, 2010Publication date: September 13, 2012Applicant: The Johns Hopkins UniversityInventors: Timothy P. Weihs, Adam Stover
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Publication number: 20120201734Abstract: The invention relates to a method of making alkali metal silicide compositions, and the compositions resulting from the method, comprising mixing an alkali metal with silicon and heating the resulting mixture to a temperature below about 475° C. The resulting compositions do not react with dry O2. Also, the invention relates to sodium silicide compositions having a powder X-ray diffraction pattern comprising at least three peaks with 2Theta angles selected from about 18.2, 28.5, 29.5, 33.7, 41.2, 47.4, and 56.2 and a solid state 23Na MAS NMR spectra peak at about 18 ppm. Moreover, the invention relates to methods of removing a volatile or flammable substance in a controlled manner. Furthermore, the alkali metal silicide compositions of the invention react with water to produce hydrogen gas.Type: ApplicationFiled: April 12, 2012Publication date: August 9, 2012Applicants: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY, SIGNA CHEMISTRY, INC.Inventors: Michael LEFENFELD, James L. DYE
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Publication number: 20120138843Abstract: The present invention provides a method of making a substantially phase pure compound including a cation and an anion. The compound is made by mixing in a ball-milling device a first amount of the anion with a first amount of the cation that is less than the stoichiometric amount of the cation, so that substantially all of the first amount of the cation is consumed. The compound is further made by mixing in a ball-milling device a second amount of the cation that is less than the stoichiometric amount of the cation with the mixture remaining in the device. The mixing is continued until substantially all of the second amount of the cation and any unreacted portion of anion X are consumed to afford the substantially phase pure compound.Type: ApplicationFiled: June 8, 2011Publication date: June 7, 2012Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, CALIFORNIA INSTITUTE OF TECHNOLOGYInventors: Jean-Pierre Fleurial, Sabah K. Bux, Richard B. Kaner
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Publication number: 20120141349Abstract: A method for producing high-purity silicon nitride in two steps is described, wherein a) high-purity silicon is reacted with nitrogen in a rotary tubular furnace comprising a first temperature zone of 1,150 to 1,250° C. and at least one other temperature zone of 1,250 to 1,350° C. in the presence of a gas mixture comprising argon and hydrogen, said reaction proceeding up to a nitrogen content of 10 to 30 wt % and b) allowing the partially nitrogen-containing product from step a) to react in a chamber or settling furnace in a quiescent bed at 1,100 to 1,450° C. with a mixture of nitrogen, argon and optionally hydrogen up to the completion of nitrogen uptake. It is possible, utilizing the method according to the invention, to produce high-purity silicon nitride with a purity of >99.9 in a technically simple manner, wherein no further purification steps, such as leaching with inorganic acids, are required.Type: ApplicationFiled: December 10, 2009Publication date: June 7, 2012Applicant: AlzChem Trostberg GmbHInventor: Georg Schroll
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Publication number: 20120121495Abstract: A method of forming a nanocomposite thermoelectric material having microstructural stability at temperatures greater than 1,000° C. The method includes creating nanocrystalline powder by cryomilling. The method is particularly useful in forming SiGe alloy powder.Type: ApplicationFiled: November 15, 2010Publication date: May 17, 2012Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Sherwin Yang, Daniel Edward Matejczyk, William Determan
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Patent number: 8173093Abstract: Provided is an iron silicide sputtering target in which the oxygen as the gas component in the target is 1000 ppm or less, and a manufacturing method of such iron silicide sputtering target including the steps of melting/casting high purity iron and silicon under high vacuum to prepare an alloy ingot, subjecting the ingot to gas atomization with inert gas to prepare fine powder, and thereafter sintering the fine powder. With this iron silicide sputtering target, the amount of impurities will be reduced, the thickness of the ?FeSi2 film during deposition can be made thick, the generation of particles will be reduced, a uniform and homogenous film composition can be yielded, and the sputtering characteristics will be favorable. The foregoing manufacturing method is able to stably produce this target.Type: GrantFiled: September 1, 2003Date of Patent: May 8, 2012Assignee: JX Nippon Mining & Metals CorporationInventors: Kunihiro Oda, Ryo Suzuki
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Publication number: 20120107213Abstract: Methods of the present invention can be used to synthesize nanowires with controllable compositions and/or with multiple elements. The methods can include coating solid powder granules, which comprise a first element, with a catalyst. The catalyst and the first element should form when heated a liquid, mixed phase having a eutectic or peritectic point. The granules, which have been coated with the catalyst, can then be heated to a temperature greater than or equal to the eutectic or peritectic point. During heating, a vapor source comprising the second element is introduced. The vapor source chemically interacts with the liquid, mixed phase to consume the first element and to induce condensation of a product that comprises the first and second elements in the form of a nanowire.Type: ApplicationFiled: December 28, 2011Publication date: May 3, 2012Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Jiguang Zhang, Jun Liu, Zhenguo Yang, Guanguang Xia, Leonard S. Fifield, Donghai Wang, Daiwon Choi, Gordon L. Graff, Larry R. Pederson
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Patent number: 8158092Abstract: Provided is iron silicide powder in which the content of oxygen as the gas component is 1500 ppm or less, and a method of manufacturing such iron silicide powder including the steps of reducing iron oxide with hydrogen to prepare iron powder, heating the iron powder and Si powder in a non-oxidizing atmosphere to prepare synthetic powder containing FeSi as its primary component, and adding and mixing Si powder once again thereto and heating this in a non-oxidizing atmosphere to prepare iron silicide powder containing FeSi2 as its primary component. The content of oxygen as the gas component contained in the iron silicide powder will decrease, and the iron silicide powder can be easily pulverized as a result thereof. Thus, the mixture of impurities when the pulverization is unsatisfactory will be reduced, the specific surface area of the iron silicide powder will increase, and the density can be enhanced upon sintering the iron silicide powder.Type: GrantFiled: May 7, 2010Date of Patent: April 17, 2012Assignee: JX Nippon Mining & Metals CorporationInventors: Kunihiro Oda, Ryo Suzuki
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Publication number: 20120063947Abstract: Target of nominal thickness (e), comprising at least one molybdenum-based compound, characterized in that it has: a lamellar microstructure; an oxygen content of less than 1000 ppm, preferably less than 600 ppm, and even more preferably less than 450 ppm; and an electrical resistivity less than five times, preferably three times and more preferably twice the theoretical electrical resistivity of the compound.Type: ApplicationFiled: April 12, 2010Publication date: March 15, 2012Applicant: SAINT-GOBAIN COATING SOLUTIONSInventor: Dominique Billieres
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Patent number: 8119089Abstract: A method for making iron silicide nano-wires comprises the following steps. Firstly, providing an iron object and a growing device, and the growing device comprising a heating apparatus and a reacting room. Secondly, placing the iron object into the reacting room. Thirdly, introducing a silicon-containing gas into the reacting room. Finally, heating the reacting room to a temperature of 600˜1200° C.Type: GrantFiled: November 6, 2008Date of Patent: February 21, 2012Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Hai-Lin Sun, Kai-Li Jiang, Qun-Qing Li, Shou-Shan Fan
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Patent number: 8110167Abstract: Methods of the present invention can be used to synthesize nanowires with controllable compositions and/or with multiple elements. The methods can include coating solid powder granules, which comprise a first element, with a catalyst. The catalyst and the first element should form when heated a liquid, mixed phase having a eutectic or peritectic point. The granules, which have been coated with the catalyst, can then be heated to a temperature greater than or equal to the eutectic or peritectic point. During heating, a vapor source comprising the second element is introduced. The vapor source chemically interacts with the liquid, mixed phase to consume the first element and to induce condensation of a product that comprises the first and second elements in the form of a nanowire.Type: GrantFiled: February 10, 2009Date of Patent: February 7, 2012Assignee: Battelle Memorial InstituteInventors: Jiguang Zhang, Jun Liu, Zhenguo Yang, Guanguang Xia, Leonard S Fifield, Donghai Wang, Daiwon Choi, Gordon Graff, Larry R Pederson
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Publication number: 20120024333Abstract: A thermoelectric material has a microstructure deformed by cryogenic impact. When the cryogenic impact is applied to the thermoelectric material, defects are induced in the thermoelectric material, and such defects increase phonon scattering, which results in enhanced figure of merit.Type: ApplicationFiled: July 29, 2011Publication date: February 2, 2012Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang-mock LEE, Kyu-hyoung LEE, Sung-ho JIN
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Publication number: 20120003136Abstract: The present invention relates to proppants which can be used to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more proppants of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the proppants of the present invention are further disclosed, as well as methods of making the proppants.Type: ApplicationFiled: September 14, 2011Publication date: January 5, 2012Applicant: OXANE MATERIALS, INC.Inventors: Robert D. Skala, John R. Loscutova, Christopher E. Coker
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Publication number: 20120001284Abstract: Various embodiments for etching of silicon nitride (SixNy) lightpipes, waveguides and pillars, fabricating photodiode elements, and integration of the silicon nitride elements with photodiode elements are described. The results show that the quantum efficiency of the photodetectors (PDs) can be increased using vertical silicon nitride vertical waveguides.Type: ApplicationFiled: December 13, 2010Publication date: January 5, 2012Applicants: PRESIDENT AND FELLOWS OF HARVARD COLLEGE, ZENA TECHNOLOGIES, INC.Inventors: Turgut TUT, Peter Duane, Young-June Yu, Winnie N. Ye, Munib Wober, Kenneth B. Crozier
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Publication number: 20110318250Abstract: Methods for producing nanostructured silicon and silicon-germanium via solid state metathesis (SSM). The method of forming nanostructured silicon comprises the steps of combining a stoichiometric mixture of silicon tetraiodide (SiI4) and an alkaline earth metal silicide into a homogeneous powder, and initating the reaction between the silicon tetraiodide (SiI4) with the alkaline earth metal silicide. The method of forming nanostructured silicon-germanium comprises the steps of combining a stoichiometric mixture of silicon tetraiodide (SiI4) and a germanium based precursor into a homogeneous powder, and initiating the reaction between the silicon tetraiodide (SiI4) with the germanium based precursors.Type: ApplicationFiled: June 8, 2011Publication date: December 29, 2011Inventors: Richard B. Kaner, Sabah K. Bux, Jean-Pierre Fleurial, Marc Rodriguez
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Publication number: 20110262679Abstract: A SiNx film as a barrier film is provided. The film is formed at a low process temperature, has a high water vapor barrier performance and a high light transmittance, and is useful for sealing of a substrate formed by a flexible organic material, such as a plastic substrate. A barrier film is formed by silicon nitride (SiNx) having an atom ratio [N/(Si+N)] indicating a ratio of nitrogen N to silicon Si in the range of 0.60 to 0.65, by using a surface wave plasma chemical vapor deposition (CVD) device.Type: ApplicationFiled: April 8, 2011Publication date: October 27, 2011Applicant: SHIMADZU CORPORATIONInventors: KAZUFUMI AZUMA, Satoko Ueno, Masayasu Suzuki, Yoshiyuki Konishi, Shinichiro Ishida
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Patent number: 8043592Abstract: In a series of reactions for power plant energy generation designed to make beneficial use of oil bearing sands, oil bearing shale and other starting materials containing silicon dioxide, the silicon dioxide starting materials are combined with a primary energy provider containing hydrocarbon to start a first reaction. During this first reaction, the silicon dioxide containing starting material is heated and crystalline silicon is produced. Then, the crystalline silicon is used in a second reaction which runs exothermically (i.e., releases heat). The heat produced from the second reaction is employed as a secondary energy to supplement the primary energy provider when heating the starting material in the first reaction and/or to supply at least one further reaction or series of reactions with the required energy, at the end of which a silicon compound is produced.Type: GrantFiled: May 9, 2007Date of Patent: October 25, 2011Assignee: Silicon Fire AGInventor: Florian Krass
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Patent number: 7972583Abstract: An iron silicide sputtering target in which the oxygen as a gas component in the target is 1000 ppm or less and a method of manufacturing such an iron silicide sputtering target are provided. The method includes the steps of melting/casting high purity iron and silicon under high vacuum to prepare an alloy ingot, subjecting the ingot to gas atomization with inert gas to prepare fine powder, and thereafter sintering the fine powder. The amount of impurities in the target will be reduced, the thickness of a ?FeSi2 film during deposition can be made thick, the generation of particles will be reduced, a uniform and homogenous film composition can be yielded, and the sputtering characteristics will be favorable. The foregoing manufacturing method is able to stably produce the target.Type: GrantFiled: October 29, 2010Date of Patent: July 5, 2011Assignee: JX Nippon Mining & Metals CorporationInventors: Kunihiro Oda, Ryo Suzuki
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Patent number: 7927570Abstract: An aggregated crystalline silicon powder with a BET surface area of 20 to 150 m2/g is provided. The aggregated crystalline silicon may be doped with a doping component and can be used to produce electronic components.Type: GrantFiled: July 2, 2010Date of Patent: April 19, 2011Assignee: Evonik Degussa GmbHInventors: Markus Pridoehl, Paul Roth, Hartmut Wiggers, Frank-Martin Petrat, Michael Kraemer
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Patent number: 7906094Abstract: Methods for the production of trisilane from the pyrolysis of disilane in a single reactor.Type: GrantFiled: September 28, 2007Date of Patent: March 15, 2011Assignees: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, American Air Liquide, Inc., Air Liquide Electronics U.S. LPInventors: Cyril Bourasseau, Gregory M. Jursich, Mindi Xu, John P. Borzio, Donald W. Mitchell, Jr., Derong Zhou, Thomas K. Moncur
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Publication number: 20110032461Abstract: In a visible-light blocking member, an infrared sensor including the visible-light blocking member, and a liquid crystal display including the infrared sensor, a visible-light blocking member is a structure including amorphous germanium or a compound of amorphous germanium and has higher transmittance for a wavelength of an infrared ray region than for a wavelength of a visible light region. Accordingly, sensitivity to infrared rays may be increased by applying the visible-light blocking member to the infrared sensor.Type: ApplicationFiled: March 12, 2010Publication date: February 10, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byeong-Hoon Cho, Sung-Hoon Yang, Kap-Soo Yoon, Ki-Hun Jeong, Kyung-Sook Jeon, Woong-Kwon Kim, Sang-Youn Han, Dae-Cheol Kim, Jung-Suk Bang
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Publication number: 20110008236Abstract: Silicon-containing products, such as silicon, silicon carbide and silicon nitride, containing less than 0.01 weight percent total mineral impurities and selectively determined carbon-to-silicon ratios. The products are derived from plant matter, such as rice hulls and rice straw, containing at least three weight percent silica. Methods are provided for making such high purity silicon-containing products by leaching silica-containing plant matter with aqueous sulfuric acid under controlled temperatures, pressures and reaction times to remove minerals and metals while adjusting the mole ratio of fixed carbon to silica, and then thermally treating under controlled conditions to produce the desired product.Type: ApplicationFiled: December 29, 2009Publication date: January 13, 2011Inventors: Norman D. Hinman, Jerome P. Downey, Guy Lawrence Fredrickson, Antonio E. Blandon
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Publication number: 20110008237Abstract: A method for making iron silicide nano-wires comprises the following steps. Firstly, providing an iron object and a growing device, and the growing device comprising a heating apparatus and a reacting room. Secondly, placing the iron object into the reacting room. Thirdly, introducing a silicon-containing gas into the reacting room. Finally, heating the reacting room to a temperature of 600˜1200° C.Type: ApplicationFiled: November 6, 2008Publication date: January 13, 2011Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.Inventor: Hai-Lin Sun
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Publication number: 20110002833Abstract: An object of the present invention is to provide a thin film of a metal-silicon compound and a process for producing the thin film of the metal-silicon compound. The metal-silicon compound has, as a unit structure, a transition metal-containing silicon cluster in which an energy gap EHL between highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) is wide. The present invention relates to a thin film of a metal-silicon compound and a process for producing the thin film of the metal-silicon compound. The metal-silicon compound is a compound of a transition metal and silicon, and has a transition metal-containing silicon cluster as a unit structure, the transition metal-containing silicon cluster having a structure in which a transition metal atom is surrounded by seven to sixteen silicon atoms, two of which are first and second neighbor atoms to the transition metal atom.Type: ApplicationFiled: February 25, 2009Publication date: January 6, 2011Inventors: Toshihiko Kanayama, Noriyuki Uchida
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Publication number: 20100316917Abstract: The invention relates to a method of making alkali metal silicide compositions, and the compositions resulting from the method, comprising mixing an alkali metal with silicon and heating the resulting mixture to a temperature below about 475° C. The resulting compositions do not react with dry O2. Also, the invention relates to sodium silicide compositions having a powder X-ray diffraction pattern comprising at least three peaks with 2Theta angles selected from about 18.2, 28.5, 29.5, 33.7, 41.2, 47.4, and 56.2 and a solid state 23Na MAS NMR spectra peak at about 18 ppm. Moreover, the invention relates to methods of removing a volatile or flammable substance in a controlled manner. Furthermore, the alkali metal silicide compositions of the invention react with water to produce hydrogen gas.Type: ApplicationFiled: August 11, 2010Publication date: December 16, 2010Applicants: SIGNA CHEMISTRY, INC., Board of Trustees of Michigan State UniversityInventors: Michael LEFENFELD, James L. DYE
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Publication number: 20100310952Abstract: Oil sand or other naturally occurring oil-containing mixtures are used to produce SiC and/or Si3N4. In a subsequent step, the Si3N4 is employed to produce ammonia (NH3).Type: ApplicationFiled: May 28, 2010Publication date: December 9, 2010Applicant: SINCONO AGInventor: Florian Krass
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Patent number: 7829050Abstract: Various embodiments of the present invention are directed to methods of forming single-crystal metal-silicide nanowires and resulting nanowire structures. In one embodiment of the present invention, a method of fabricating nanowires is disclosed. In the method, a number of nanowire-precursor members are formed. Each of the nanowire-precursor members includes a substantially single-crystal silicon region and a polycrystalline-metallic region. The substantially single-crystal silicon region and the polycrystalline-metallic region of each of the nanowire-precursor members is reacted to form corresponding substantially single-crystal metal-silicide nanowires. In another embodiment of the present invention, a nanowire structure is disclosed. The nanowire structure includes a substrate having an electrically insulating layer. A number of substantially single-crystal metal-silicide nanowires are positioned on the electrically insulating layer.Type: GrantFiled: February 13, 2007Date of Patent: November 9, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zhaoning Yu, Zhiyong Li, Wei Wu, Shih-Yuan Wang, R. Stanley Williams
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Patent number: 7811541Abstract: The invention relates to a method of making alkali metal silicide compositions, and the compositions resulting from the method, comprising mixing an alkali metal with silicon and heating the resulting mixture to a temperature below about 475° C. The resulting compositions do not react with dry O2. Also, the invention relates to sodium silicide compositions having a powder X-ray diffraction pattern comprising at least three peaks with 2Theta angles selected from about 18.2, 28.5, 29.5, 33.7, 41.2, 47.4, and 56.2 and a solid state 23Na MAS NMR spectra peak at about 18 ppm. Moreover, the invention relates to methods of removing a volatile or flammable substance in a controlled manner. Furthermore, the alkali metal silicide compositions of the invention react with water to produce hydrogen gas.Type: GrantFiled: June 14, 2005Date of Patent: October 12, 2010Assignees: Signa Chemistry, Inc., Board of Trustees of Michigan State UniversityInventors: Michael Lefenfeld, James L. Dye
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Publication number: 20100247414Abstract: The crude oil reserves have a calculable time limit. Starting materials containing silicon dioxide are preferably used as raw materials.Type: ApplicationFiled: December 7, 2007Publication date: September 30, 2010Applicant: SILICON FIRE AGInventor: Florian Krass
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Publication number: 20100239482Abstract: A method according to the invention comprises: starting plasma discharge for forming the gas barrier layer in a film deposition chamber; and producing the gas barrier layer by using a plasma after a first predetermined period of time has elapsed from a start of the plasma discharge.Type: ApplicationFiled: March 17, 2010Publication date: September 23, 2010Applicant: FUJIFILM CORPORATIONInventors: Toshiya TAKAHASHI, Kouji TONOHARA, Shinsuke TAKAHASHI