Patent
Method of improving the thermo-mechanical properties of fiber-reinforced silicon carbide matrix composites
Ramakrishna T. Bhatt,James A. DiCarlo +1 more
- 01 Feb 2011
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TL;DR: In this paper, a thermal treatment process for improving thermo-mechanical properties of ceramic matrix composite materials such as silicon carbide (SiC) matrix composites is described, which removes excess silicon and/or other process-related defects from the SiC-based matrix as well as the fiber interfacial coating.
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Abstract: A thermal treatment process for improving thermo-mechanical properties of ceramic matrix composite materials such as silicon carbide (SiC) matrix composites is described. The treatment process removes excess silicon and/or other process-related defects from the SiC-based matrix as well as the fiber interfacial coating. This invention can be practiced with minimal strength loss for as-fabricated composites formed from high-strength continuous-length ceramic and carbon-based fibers that are functionally stable to 1600° C. and above. The invention provides a method for significantly improving composite thermal conductivity and creep resistance, and for reducing composite porosity. It has been demonstrated using state-of-the-art 2D woven SiC/SiC composites containing Sylramic-iBN SiC fibers, boron-nitride-based interfacial coatings, and hybrid matrices that are based on SIC formed by chemical vapor infiltration (CVI) and by a combination of CNI, SiC particulate infiltration, polymer infiltration and pyrolysis, and melt infiltration of silicon, silicon-based alloys, and silicides.
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Citations
Patent
Ceramic matrix composite and method and article of manufacture
Adam L. Chamberlain,Andrew J. Lazur,Robert J. Shinavski +2 more
- 14 Mar 2014
TL;DR: In this paper, the type and need for such an interface coating is generally a function of the type of fiber used, such as boron nitride (BN) or pyrolytic carbon (PyC).
11
Patent
Rapid ceramic matrix composite production method
Andrew J. Lazur,Adam L. Chamberlain +1 more
- 26 Dec 2013
TL;DR: In this article, a method of producing a ceramic matrix composite comprising of applying a fiber interface coating to the composite, coating the composite via chemical vapor infiltration, and infiltrating the composite with molten material, wherein the composite is not removed from a tool between steps is presented.
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Patent
Method for producing high strength ceramic matrix composites
Andrew J. Lazur
- 11 Mar 2014
TL;DR: A high strength ceramic matrix composite and method for same is provided in this paper, where a fiber preform is provided that is either self-supporting or is constrained by a tool for subsequent processing.
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Patent
Laminate structure fabricated using chemical vapor infiltration (cvi)
Jared Hogg Weaver,Badri Narayan Ramamurthi +1 more
- 18 Feb 2016
TL;DR: In this article, a preform can be subject to chemical vapor infiltration (CVI) to define a ceramic matrix composite (CMC) structure, a supplemental preform is added to the CMC structure to define an expanded structure and CVI can be performed using the expanded structure.
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Patent
Ceramic matrix composite including silicon carbide fibers in a ceramic matrix comprising a max phase compound
Stephen Isaiah Harris,Robert J. Shinavski +1 more
- 25 Aug 2016
TL;DR: In this paper, a MAX phase compound has a chemical composition M n+1 AX n, where X is carbon or nitrogen, with n being an integer from 1 to 3, and X is a transition metal selected from the group consisting of: Ti, V, Cr, Sc, Zr, Nb, Mo, Hf, and Ta.
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References
Patent
Silicon carbide semiconductor device and process for producing the same
Kunimasa Takahashi,Makoto Kitabatake,Kenya Yamashita,Masao Uchida,Osamu Kusumoto,Ryoko Miyanaga +5 more
- 28 Jan 2005
TL;DR: In this article, a process for producing a semiconductor device, comprising the steps of injecting ions into silicon carbide thin-film (2) provided on a silicon-carbide substrate (1), heating the resultant silicon- carbide substrate in vacuum atmosphere to thereby form carbon layer (5) on a surface of the resultant substrate, and subjecting the resulting silicon-cubic substrate to activation annealing in an atmosphere of temperature higher and under a pressure higher than in the step of carbon layer formation, is described.
57
Patent
Low temperature joining of ceramic composites
Thomas J. Barton,Iver E. Anderson,Sina Ijadi-Maghsoodi,Mohammad Nosrati,Ozer Unal +4 more
- 23 Feb 1998
TL;DR: In this article, a solventless, three component bonding agent is used to promote mechanical bond toughness and elevated temperature strength to operating temperatures of approximately 1200 degrees C. The bonding agent comprises a preceramic precursor, an aluminum bearing powder, such as aluminum alloy powder, and mixtures of aluminum metal or alloy powders with another powder and and boron powder in selected proportions.
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Patent
Method of siliciding thermostructural composite materials, and parts obtained by the method
Jacques Thebault,René Pailler,Jean Christophe Ichard +2 more
- 16 Jan 2009
TL;DR: Within the pores of a porous thermostructural composite material, there is form an aerogel or xerogel made up of a precursor for a refractory material, and then it is silicided by being impregnated with a molten silicon type phase as discussed by the authors.
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Patent
Matrix for high-performance ceramic matrix composite
Tetsuo Nakayasu
- 25 Feb 1999
TL;DR: A matrix for high performance ceramic matrix composite containing inorganic fiber for reinforcement, which comprises silicon carbide and an oxide phase having dispersed in the solicon carbide ceramic, is presented in this article.
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Patent
Method for processing silicon-carbide preforms having a high temperature boron nitride coating
Dennis J Landini,Roger Lee Ken Matsumoto +1 more
- 12 Dec 2002
TL;DR: In this article, a method of processing a ceramic preform is disclosed having the steps of: coating with a preceramic polymer at least one fabric panel formed of silicon carbide fibers coated with a high temperature boron nitride; shaping the at least fabric panel into a preliminary preform; curing the preceramide polymer to impart rigidity to the preform, and inserting the rigidized preform into a reactor without tooling for a chemical vapor infiltration process.
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