Results 251 to 260 of about 130,070 (297)
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Physics Today, 1959
There exists a need, especially in the cases of some military applications, for a stable, high-temperature semiconductor material. Active and passive devices fabricated from such a material could operate in a high-temperature ambient and simultaneously resist radiation damage.
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There exists a need, especially in the cases of some military applications, for a stable, high-temperature semiconductor material. Active and passive devices fabricated from such a material could operate in a high-temperature ambient and simultaneously resist radiation damage.
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1991
A process is described for forming silicon carbide coatings on nickel based superalloys by: i) nitriding the alloy or depositing a titanium nitride film on the alloy by reactive sputtering; ii) vapour phase chemica deposition of a thin film of titanium nitride; iii) annealing in a nitrogen and hydrogen atmosphere; iv) vapour phase chemical deposition ...
V. Adoncecchi +3 more
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A process is described for forming silicon carbide coatings on nickel based superalloys by: i) nitriding the alloy or depositing a titanium nitride film on the alloy by reactive sputtering; ii) vapour phase chemica deposition of a thin film of titanium nitride; iii) annealing in a nitrogen and hydrogen atmosphere; iv) vapour phase chemical deposition ...
V. Adoncecchi +3 more
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Silicon carbide microdisk resonator
Optics Letters, 2013We demonstrate a silicon carbide (SiC) microdisk resonator with an intrinsic optical quality factor of 6.19×10(3), fabricated on the 3C-SiC-on-Si platform. We characterize the temperature dependence of the cavity resonance and obtain a thermo-optic coefficient of 2.92×10(-5)/K for 3C-SiC.
Xiyuan, Lu +3 more
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Silicon Carbide Monofilament‐Reinforced Silicon Nitride or Silicon Carbide Matrix Composites
Journal of the American Ceramic Society, 1989SiC‐monofilament‐reinforced SiC or Si 3 N 4 matrix composites were fabricated by hot‐pressing, and their mechanical properties and effects of filaments and filament coating layers were studied.
Hironori Kodama +2 more
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Journal of the European Ceramic Society, 2002
Abstract Interphase boundaries between SiC and h-BN grains in hot isostatically pressed Si3N4–SiC particulate composites made from both as-received powders and deoxidised powders, in which sub-micron size h-BN particles occur as a contaminant, have been characterised using transmission electron microscopy techniques.
Knowles, KM, Turan, Servet
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Abstract Interphase boundaries between SiC and h-BN grains in hot isostatically pressed Si3N4–SiC particulate composites made from both as-received powders and deoxidised powders, in which sub-micron size h-BN particles occur as a contaminant, have been characterised using transmission electron microscopy techniques.
Knowles, KM, Turan, Servet
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Silicon Carbide/SRBSN Composites
Journal of Microscopy, 1993SUMMARYCeramic‐matrix composites have been produced using unidirectionally aligned Textron SCS‐6 fibres in a sintered reaction‐bonded matrix. A tape‐casting technique was used to produce a prepreg sheet that could be cut and stacked to form a layup. Al2O3 and Y2O3 were used as sintering aids, final sintering being carried out in a hot press at 1700°C ...
A. G. RAZZELL, M. H. LEWIS
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Silicon Carbide Fiber Reinforced Recrystallized Silicon Carbide
Key Engineering Materials, 2004J. Kriegesmann, Matthias Schumacher
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Fracture of silicon carbide fibre
Composites, 1970SILICON carbide fibre in the form of a 100 µm diameter polycrystalline coating on a 12 µm tungsten wire substrate is now commercially available. The short term strength of this material has been shown1 to be essentially constant to 1,100° C, but creep rupture results (unpublished work of K. F. A.
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