Patents by Inventor Enrique J. Lavernia
Enrique J. Lavernia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230407460Abstract: A method of forming a single-phase high entropy silicide includes depositing at least two metal layers onto a silicon substrate to form a multilayer film; and heat treating the multilayer film to promote interdiffusion of the metal layer and the silicon substrate to form a single-phase silicide material.Type: ApplicationFiled: November 5, 2021Publication date: December 21, 2023Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Julie M. SCHOENUNG, Aleksandra L. VYATSKIKH, Alexander D. DUPUY, Benjamin E. MacDONALD, Enrique J. LAVERNIA, Horst HAHN
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Publication number: 20230045680Abstract: A method of forming a consolidated component having a complex shape includes providing a first component having a first shape similar to the complex shape. The method further includes placing the first component in a chamber and surrounding the first component with a medium. The method further includes applying pressure and at least one of heat or electricity into the chamber to process the first component to form a consolidated component having the complex shape.Type: ApplicationFiled: March 3, 2021Publication date: February 9, 2023Applicants: The Regents of the University of California, National Technology & Engineering Solutions of Sandia, LLCInventors: Enrique J. LAVERNIA, Baolong ZHENG, Yizhang ZHOU, Todd MONSON
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Publication number: 20230033494Abstract: A method for forming a 2-dimensional pattern or 3-dimensional object using an aluminum (Al) 5xxx series alloy includes providing a feedstock that includes the Al 5xxx alloy. The method further includes depositing, using an additive manufacturing process, the feedstock under thermal conditions that permit formation of the pattern or object. The method further includes adjusting a parameter of the additive manufacturing process during the depositing.Type: ApplicationFiled: December 16, 2020Publication date: February 2, 2023Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, RAMOT AT TEL-AVIV UNIVERSITY LTD.Inventors: Noam Eliaz, David Svetlizky, Julie Schoenung, Enrique J. Lavernia, Yizhang Zhou, Baolong Zheng
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Patent number: 9963344Abstract: Bulk iron nitride can be synthesized from iron nitride powder by spark plasma sintering. The iron nitride can be spark plasma sintered at a temperature of less than 600° C. and a pressure of less than 600 MPa, with 400 MPa or less most often being sufficient. High pressure SPS can consolidate dense iron nitrides at a lower temperature to avoid decomposition. The higher pressure and lower temperature of spark discharge sintering avoids decomposition and limits grain growth, enabling enhanced magnetic properties. The method can further comprise synthesis of nanocrystalline iron nitride powders using two-step reactive milling prior to high-pressure spark discharge sintering.Type: GrantFiled: January 20, 2016Date of Patent: May 8, 2018Assignee: National Technology & Engineering Solution of Sandia, LLCInventors: Todd Monson, Enrique J. Lavernia, Baolong Zheng, Yizhang Zhou
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Publication number: 20160207769Abstract: Bulk iron nitride can be synthesized from iron nitride powder by spark plasma sintering. The iron nitride can be spark plasma sintered at a temperature of less than 600° C. and a pressure of less than 600 MPa, with 400 MPa or less most often being sufficient. High pressure SPS can consolidate dense iron nitrides at a lower temperature to avoid decomposition. The higher pressure and lower temperature of spark discharge sintering avoids decomposition and limits grain growth, enabling enhanced magnetic properties. The method can further comprise synthesis of nanocrystalline iron nitride powders using two-step reactive milling prior to high-pressure spark discharge sintering.Type: ApplicationFiled: January 20, 2016Publication date: July 21, 2016Inventors: Todd Monson, Enrique J. Lavernia, Baolong Zheng, Yizhang Zhou
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Patent number: 9211586Abstract: A non-faceted nanoparticle reinforced metal matrix composite having increased ductility, while maintaining strength. In particular, a non-faceted nanoparticle reinforced metal matrix composite is provided comprised of spherical or ellipsoidal shaped (non-faceted) nanoparticles comprising one or more of boron carbide, titanium diboride, silicon nitride, alumina and boron nitride, and a nanostructured matrix composite comprised of one or more metals and/or metal alloys. In addition, a method of manufacturing such a non-faceted nanoparticle reinforced metal matrix composite is provided.Type: GrantFiled: February 24, 2012Date of Patent: December 15, 2015Assignee: The United States of America as Represented by the Secretary of the ArmyInventors: Enrique J. Lavernia, Julie M. Schoenung, Yizhang Zhou, Zhihui Zhang, Ying Li, Troy Topping, Rustin Vogt, Deepak Kapoor, Joseph Paras, Christopher Haines
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Patent number: 8778459Abstract: A system for coating a surface comprises providing a source of amorphous metal, providing ceramic particles, and applying the amorphous metal and the ceramic particles to the surface by a spray. The coating comprises a composite material made of amorphous metal that contains one or more of the following elements in the specified range of composition: yttrium (?1 atomic %), chromium (14 to 18 atomic %), molybdenum (?7 atomic %), tungsten (?1 atomic %), boron (?5 atomic %), or carbon (?4 atomic %).Type: GrantFiled: October 1, 2009Date of Patent: July 15, 2014Assignees: Lawrence Livermore National Security, LLC., The Regents of the University of California, Sandia CorporationInventors: Joseph C. Farmer, Frank M. G. Wong, Jeffery J. Haslam, Nancy Yang, Enrique J. Lavernia, Craig A. Blue, Olivia A. Graeve, Robert Bayles, John H. Perepezko, Larry Kaufman, Julie Schoenung, Leo Ajdelsztajn
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Patent number: 8524053Abstract: A method of coating a surface comprising providing a source of amorphous metal that contains manganese (1 to 3 atomic %), yttrium (0.1 to 10 atomic %), and silicon (0.3 to 3.1 atomic %) in the range of composition given in parentheses; and that contains the following elements in the specified range of composition given in parentheses: chromium (15 to 20 atomic %), molybdenum (2 to 15 atomic %), tungsten (1 to 3 atomic %), boron (5 to 16 atomic %), carbon (3 to 16 atomic %), and the balance iron; and applying said amorphous metal to the surface by a spray.Type: GrantFiled: February 14, 2011Date of Patent: September 3, 2013Inventors: Joseph C. Farmer, Frank M. G. Wong, Jeffery J. Haslam, Xiaoyan (Jane) Ji, Sumner D. Day, Craig A. Blue, John D. K. Rivard, Louis F. Aprigliano, Leslie K. Kohler, Robert Bayles, Edward J. Lemieux, Nancy Yang, John H. Perepezko, Larry Kaufman, Arthur Heuer, Enrique J. Lavernia
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Patent number: 8480864Abstract: A method of coating a surface comprising providing a source of amorphous metal that contains manganese (1 to 3 atomic %), yttrium (0.1 to 10 atomic %), and silicon (0.3 to 3.1 atomic %) in the range of composition given in parentheses; and that contains the following elements in the specified range of composition given in parentheses: chromium (15 to 20 atomic %), molybdenum (2 to 15 atomic %), tungsten (1 to 3 atomic %), boron (5 to 16 atomic %), carbon (3 to 16 atomic %), and the balance iron; and applying said amorphous metal to the surface by a spray.Type: GrantFiled: November 9, 2006Date of Patent: July 9, 2013Inventors: Joseph C. Farmer, Frank M. G. Wong, Jeffery J. Haslam, Xiaoyan (Jane) Ji, Sumner D. Day, Craig A. Blue, John D. K. Rivard, Louis F. Aprigliano, Leslie K. Kohler, Robert Bayles, Edward J. Lemieux, Nancy Yang, John H. Perepezko, Larry Kaufman, Arthur Heuer, Enrique J. Lavernia
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Publication number: 20110165348Abstract: A method of coating a surface comprising providing a source of amorphous metal that contains manganese (1 to 3 atomic %), yttrium (0.1 to 10 atomic %), and silicon (0.3 to 3.1 atomic %) in the range of composition given in parentheses; and that contains the following elements in the specified range of composition given in parentheses: chromium (15 to 20 atomic %), molybdenum (2 to 15 atomic %), tungsten (1 to 3 atomic %), boron (5 to 16 atomic %), carbon (3 to 16 atomic %), and the balance iron; and applying said amorphous metal to the surface by a spray.Type: ApplicationFiled: February 14, 2011Publication date: July 7, 2011Applicant: Lawrence Livermore National Security, LLCInventors: Joseph C. Farmer, Frank M.G. Wong, Jeffery J. Haslam, Xiaoyan (Jane) Ji, Sumner D. Day, Craig A. Blue, John D.K. Rivard, Louis F. Aprigliano, Leslie K. Kohler, Robert Bayles, Edward J. Lemieux, Nancy Yang, John H. Perepezko, Larry Kaufman, Arthur Heuer, Enrique J. Lavernia
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Publication number: 20100084052Abstract: A method of coating a surface comprising providing a source of amorphous metal that contains manganese (1 to 3 atomic %), yttrium (0.1 to 10 atomic %), and silicon (0.3 to 3.1 atomic %) in the range of composition given in parentheses; and that contains the following elements in the specified range of composition given in parentheses: chromium (15 to 20 atomic %), molybdenum (2 to 15 atomic %), tungsten (1 to 3 atomic %), boron (5 to 16 atomic %), carbon (3 to 16 atomic %), and the balance iron; and applying said amorphous metal to the surface by a spray.Type: ApplicationFiled: November 9, 2006Publication date: April 8, 2010Inventors: Joseph C. Farmer, Frank M. G. Wong, Jeffery J. Haslam, Xiaoyan (Jane) Ji, Sumner D. Day, Craig A. Blue, John D. K. Rivard, Louis F. Aprigliano, Leslie K. Kohler, Robert Bayles, Edward J. Lemieux, Nancy Yang, John H. Perepezko, Larry Kaufman, Arthur Heuer, Enrique J. Lavernia
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Publication number: 20100028550Abstract: A system for coating a surface comprises providing a source of amorphous metal, providing ceramic particles, and applying the amorphous metal and the ceramic particles to the surface by a spray. The coating comprises a composite material made of amorphous metal that contains one or more of the following elements in the specified range of composition: yttrium (?1 atomic %), chromium (14 to 18 atomic %), molybdenum (?7 atomic %), tungsten (?1 atomic %), boron (?5 atomic %), or carbon (?4 atomic %).Type: ApplicationFiled: October 1, 2009Publication date: February 4, 2010Inventors: Joseph C. Farmer, Frank M.G. Wong, Jeffery J. Haslam, Nancy Yang, Enrique J. Lavernia, Craig A. Blue, Olivia A. Graeve, Robert Bayles, John H. Perepezko, Larry Kaufman, Julie Schoenung, Leo Ajdelsztajn
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Publication number: 20100021750Abstract: A system for coating a surface comprises providing a source of amorphous metal, providing ceramic particles, and applying the amorphous metal and the ceramic particles to the surface by a spray. The coating comprises a composite material made of amorphous metal that contains one or more of the following elements in the specified range of composition: yttrium (?1 atomic %), chromium (14 to 18 atomic %), molybdenum (?7 atomic %), tungsten (?1 atomic %), boron (?5 atomic %), or carbon (?4 atomic %).Type: ApplicationFiled: October 2, 2009Publication date: January 28, 2010Inventors: Joseph C. Farmer, Frank M.G. Wong, Jeffery J. Haslam, Nancy Yang, Enrique J. Lavernia, Craig A. Blue, Olivia A. Graeve, Robert Bayles, John H. Perepezko, Larry Kaufman, Julie Schoenung, Leo Ajdelsztajn
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Patent number: 7618500Abstract: A system for coating a surface comprises providing a source of amorphous metal, providing ceramic particles, and applying the amorphous metal and the ceramic particles to the surface by a spray. The coating comprises a composite material made of amorphous metal that contains one or more of the following elements in the specified range of composition: yttrium (?1 atomic %), chromium (14 to 18 atomic %), molybdenum (?7 atomic %), tungsten (?1 atomic %), boron (?5 atomic %), or carbon (?4 atomic %).Type: GrantFiled: November 9, 2006Date of Patent: November 17, 2009Assignee: Lawrence Livermore National Security, LLCInventors: Joseph C. Farmer, Frank M. G. Wong, Jeffery J. Haslam, Nancy Yang, Enrique J. Lavernia, Craig A. Blue, Olivia A. Graeve, Robert Bayles, John H. Perepezko, Larry Kaufman, Julie Schoenung, Leo Ajdelsztajn
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Functional coatings for the reduction of oxygen permeation and stress and method of forming the same
Patent number: 7361386Abstract: The oxidation behavior of the bond coat is improved using a HVOF nanostructured NiCrAlY coating. NiCrAlY powder is mechanically cryomilled and HVOF sprayed onto Ni-based alloy to form a nanocrystalline bond coat. Oxidation is performed on the coating to form the thermally grown oxide layer (thermally grown oxide). After heat treatment at 1000° C. for 24 and 95 hour, a homogeneous ?-Al2O3 layer is formed on top of the bond coat. The nanostructured characteristic of the coating and the presence of Al2O3 within the cryomilled powders (oxidation occurred during cryomilling process) affects the nucleation of the alumina layer on the top of the coating. The formation of a continuous thermally grown oxide layer protects the coating from further oxidation and avoids the formation of mixed oxide protrusions, such as those presented in the coating sprayed using the as-received powder.Type: GrantFiled: July 22, 2003Date of Patent: April 22, 2008Assignees: The Regents of the University of California, Perpetual TechnologiesInventors: George E. Kim, Julie M. Schoenung, Virgil Provenzano, Enrique J. Lavernia, Leonardo Ajdelsztajn -
Functional coatings for the reduction of oxygen permeation and stress and method of forming the same
Publication number: 20040131865Abstract: The oxidation behavior of the bond coat is improved using a HVOF nanostructured NiCrAlY coating. NiCrAlY powder is mechanically cryomilled and HVOF sprayed onto Ni-based alloy to form a nanocrystalline bond coat. Oxidation is performed on the coating to form the thermally grown oxide layer (thermally grown oxide). After heat treatment at 1000° C. for 24 and 95 hour, a homogeneous &agr;-Al2O3 layer is formed on top of the bond coat. The nanostructured characteristic of the coating and the presence of Al2O3 within the cryomilled powders (oxidation occurred during cryomilling process) affects the nucleation of the alumina layer on the top of the coating. The formation of a continuous thermally grown oxide layer protects the coating from further oxidation and avoids the formation of mixed oxide protrusions, such as those presented in the coating sprayed using the as-received powder.Type: ApplicationFiled: July 22, 2003Publication date: July 8, 2004Inventors: George E. Kim, Julie M. Schoenung, Virgil Provenzano, Enrique J. Lavernia, Leonardo Ajdelsztajn -
Patent number: 5980604Abstract: Spray atomization of molten metal and/or intermetallic matrix composites reinforced with ceramic particles is practiced by atomizing the matrix into micron sized droplets and depositing the semisolid droplets in a bulk deposition upon a temperature controlled substrate. The semiliquid droplets are injected with refinement particles while in a range of 0 to 40% by volume solid phase and deposited on the substrate surface while in a 40 to 90% by volume solid phase. Refined grain morphology, increased solid solubility, nonequilibrium phases, absence of macro segregation, and elimination of the need to handle fine reactive particles are all achieved by performing the spray deposition process under a controlled atmosphere. Materials fabricated by the process exhibit unusual combinations of properties, such as spatially varying properties.Type: GrantFiled: June 13, 1996Date of Patent: November 9, 1999Assignee: The Regents of the University of CaliforniaInventor: Enrique J. Lavernia
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Patent number: 5939146Abstract: Nanocrystalline coating are prepared using a two step approach. First, the grain size of: micrometer sized powders is reduced to nanometer dimensions using high energy ball milling. This is undertaken using attritor mills. Second, the nanocrystalline powders are dried and introduced into the high velocity oxygen fuel (HVOF) process and produce a coating with refined microstructure. The finished coating can be several mm in thickness. In addition a three dimensional device can be spray formed.Type: GrantFiled: December 11, 1997Date of Patent: August 17, 1999Assignee: The Regents of the University of CaliforniaInventor: Enrique J. Lavernia
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Patent number: 5225004Abstract: Bulk rapidly solidified magnetic materials having a density of greater than 90%, a thickness of at least 250 microns, and preferably a low oxygen content, are produced by a liquid dynamic compaction process which, depending upon the chosen operating conditions, can yield materials ranging from crystalline to partially crystalline to amorphous. The materials so produced are directly useful, i.e. without having to be reduced to a powder and consolidated into a shape, to produce permanent magnets.Type: GrantFiled: April 30, 1991Date of Patent: July 6, 1993Assignee: Massachusetts Institute of TechnologyInventors: Robert C. O'Handley, Nicholas J. Grant, Yutaka Hara, Enrique J. Lavernia, Tetsuji Harada, Teiichi Ando