Results 261 to 270 of about 211,094 (307)
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Creep of SiC–SiC microcomposites
Journal of the European Ceramic Society, 1999Abstract The creep behavior of SiC/C/SiC microcomposites at 1200–1400 °C and 140–450 MPa was investigated in the presence and absence of matrix cracking. The microcomposites consisted of single Hi Nicalon or Carborundum fibers coated with a CVD carbon interlayer and a CVD SiC matrix.
Kevin L. Rugg +3 more
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MRS Proceedings, 2002
ABSTRACTSiC wafers with an RMS roughness of 1.5 nm were bonded in a dedicated ultrahigh vacuum bonding chamber. Successful fusion of wafers was observed at temperatures as low as 800°C under a uniaxial mechanical stress of 20 MPa. Cross-section transmission electron microscopy (XTEM) of a specimen bonded at 1100°C revealed parts of the interface where ...
G. N. Yushin +3 more
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ABSTRACTSiC wafers with an RMS roughness of 1.5 nm were bonded in a dedicated ultrahigh vacuum bonding chamber. Successful fusion of wafers was observed at temperatures as low as 800°C under a uniaxial mechanical stress of 20 MPa. Cross-section transmission electron microscopy (XTEM) of a specimen bonded at 1100°C revealed parts of the interface where ...
G. N. Yushin +3 more
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Radioluminescence characterization of SiC and SiC/SiC for 1.8MeV electron irradiation
Journal of Nuclear Materials, 2013Abstract As a first step to permit in situ monitoring of radiation induced degradation in SiC materials, characterization by means of 1.8 MeV electron induced radioluminescence (RL) was performed. RL has been measured at 75 Gy/s and 5.4 kGy/s and temperatures from 15 to 450 °C (288–723 K), to total doses ⩽200 MGy for hot pressed, reaction bonded ...
M. Malo, A. Moroño, E.R. Hodgson
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Low dose irradiation performance of SiC interphase SiC/SiC composites
Journal of Nuclear Materials, 1998Abstract Reduced oxygen Hi–Nicalon™ fiber reinforced composite SiC materials were densified with a chemically vapor infiltrated (CVI) silicon carbide (SiC) matrix and interphases of either `porous' SiC or multilayer SiC and irradiated to a neutron fluence of 1.1×1025 n m−2 (E>0.1 MeV) in the temperature range of 260 to 1060°C.
L.L Snead +8 more
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Recent Progress of SiC-Fibers and SiC/SiC-Composites for Fusion Applications
Physica Scripta, 2001Recent progress in R&D of SiC fibers and reinforced SiC matrix (SiC/SiC) composites in Japan, especially focusing on the activities of CREST-ACE program, is presented. Firstly, the present status of high performance SiC fiber development, such as Hi-Nicalon Type-S and Tyrano-SA, is provided.
T. Noda, A. Kohyama, Y. Katoh
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The effect of SiC nanowires on the flexural properties of CVI-SiC/SiC composites
Journal of Nuclear Materials, 2007Single crystal SiC nanowires with volume fractions of 0%, 1.6%, 5.7% and 6.1% were incorporated in the matrices of several CVI-Tyranno-SA/SiC composites, to study the effects of the nanowires on the flexural properties of the composites. The results show that the SiC nanowires are very effective reinforcements for SiC/SiC composites.
Wen Yang +6 more
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Evaluation of microstructure for SiC/SiC composites
International Journal of Materials and Product Technology, 2001SiC/SiC composites are expected to be used as materials for high temperature structural parts because of their high temperature stability. Toshiba has developed two kinds of SiC/SiC composites for gas turbine hot parts applications, which produced by RS and PIP processes. The both processes have the capabilities of making complex shapes in near net. In
S. Suyama, T. Kameda, Y. Itoh
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Chemical Vapor Infiltrated SiC/SiC Composites (CVI SiC/SiC)
2005CVI SiC/SiC composites are manufactured via Chemical Vapor Infiltration Process. The SiC-based matrices are deposited from gaseous reactants on to a heated substrate of SiC fiber preforms. An interphase coated on the fibers allows control of damage and mechanical behavior.
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Observation of (sic) - hyperon transverse polarization in ?(3686) ? (sic)- (sic) +
2022[Abstract Not Available]
Ablikim, M. +6 more
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