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Publikováno v:
Materials Letters. 241:123-127
We describe the β → α phase transformation in SiC/SiC fiber-reinforced composites prepared by spark plasma sintering (SPS) and hot-pressing, resulting in samples of >96% relative density and uniform β-SiC microstructure for the SPS composites. S
Publikováno v:
Materials Letters. 213:286-289
We report the microhardness of SiC fiber-reinforced SiC matrix (SiC/SiC) composites produced by a transient eutectic phase (TEP) hot-press consolidation process. The internal microstructure of the composites was evaluated by scanning electron microsc
Publikováno v:
Menoufia Journal of Soil Science. 2:201-210
A field experiment was conducted at Ali Mubarak agricultural research station (30o 35´ N, 30° 15´ E, and 32 m above sea level), El-Bustan area, El-Behiera Governorate, Egypt in winter seasons of 2008-2009 and 2009-2010. The aim was to study the ef
Autor:
James O. Kiggans, Takaaki Koyanagi, H.E. Khalifa, Tatsuya Hinoki, Yutai Katoh, Christian P. Deck, Christina Back
Publikováno v:
Journal of Nuclear Materials. 488:150-159
Monolithic silicon carbide (SiC) to SiC plate joints were fabricated and irradiated with neutrons at 270–310 °C to 8.7 dpa for SiC. The joining methods included solid state diffusion bonding using titanium and molybdenum interlayers, SiC nanopowde
Publikováno v:
Journal of Nuclear Materials. 487:91-95
This paper reports on a nuclear-grade joining material for bonding of silicon carbide-based components. The joint material is fabricated via a hybrid preceramic polymer, chemical vapor infiltration process. The joint is comprised entirely of β-SiC a
Autor:
H.E. Khalifa, Christina Back, George M. Jacobsen, Christian P. Deck, Joshua Stone, Robert W. Schleicher
Publikováno v:
Journal of Nuclear Materials. 466:682-697
Silicon carbide (SiC) fiber, SiC matrix composites (SiC/SiC) are being considered as a cladding material for light water reactors in order to improve safety performance. Engineered, multi-layer cladding designs consisting of both monolithic SiC (mSiC
Autor:
Christina Back, H.E. Khalifa, Sheeder Jonathan David, George M. Jacobsen, Christian P. Deck, Joshua Stone, O. Gutierrez, Zhang Jiping
Publikováno v:
Journal of Nuclear Materials. 466:667-681
Silicon carbide (SiC) is being investigated for accident tolerant fuel cladding applications due to its high temperature strength, exceptional stability under irradiation, and reduced oxidation compared to Zircaloy under accident conditions. An engin
Autor:
H.E. Khalifa, Jonas Opperman, Oleg L. Khasanov, Oleg Izhvanov, Wei Li, Eugene A. Olevsky, Christina Back
Publikováno v:
Ceramics International. 41:3748-3759
Spark plasma sintering (SPS) is an emerging powder consolidating technique which promises high potential capabilities to process refractory ceramics with properties previously unattainable. As the first step in studying the applicability of this tech
Autor:
H.E. Khalifa, Peter Hosemann, M.D. Abad, Christina Back, D. L. Krumwiede, David Frazer, Christian P. Deck
Publikováno v:
Composites Part A: Applied Science and Manufacturing. 70:93-101
SiC fiber-reinforced SiC matrix composites (SiC/SiC) are under consideration as a structural material for a range of nuclear applications. While these materials have been studied for decades, recently new small scale materials testing techniques have