Results 271 to 280 of about 125,106 (323)
Degradation transformation in spinel-type functional thick-film ceramic materials
Microelectronics Reliability, 2014 Abstract The mathematical models of thermally-induced degradation processes in solids with nano- and microscale topological disordering – bulk and thick-film ceramic composites based on mixed transition-metal manganites are considered. It was shown that degradation transformations in these materials are best described by stretched or suppressed ...
Halyna Klym +3 more
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Composites and Functionally Graded Materials, 1997 Abstract A physically-based damage model has been developed to predict the nonlinear behavior of cross-ply ceramic matrix laminates due to progressive failures. It has been shown to model the nonlinear stress-strain response of chemical vapor infiltrated (CVI) SiC/SiC composites under tension loading accurately.
Chian‐Fong Yen, Mark L. Jones
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Degradation of Ceramic Materials in Physiological Media
, 1979 The literature apropos of the degradation of ceramics and ceramic-coated metal systems in physiological media is reviewed. Both in vitro and in vivo studies are involved. Generally, ceramics suffer losses of mechanical strength with time in physiological media, and ceramic-metal bonds lose adherence. Carbons seem to be exceptions to this rule.
JL Drummond, M Simon, SD Brown
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The European Physical Journal Special Topics, 2008 The thermal conductivity degradation induced by irradiation with energetic heavy ions at room temperature is studied and quantified. Three semi-metallic systems: titanium and zirconium carbides, titanium nitride, as well as a covalent compound: 6H silicon carbide were irradiated by 25.8 MeV krypton ions at 1016 and 6 .
Sônia M. Gomes +6 more
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Journal of Nuclear Materials, 2005 The thermal conductivity degradation due to low-temperature neutron irradiation is studied and quantified in terms of thermal resistance terms. Neutron irradiation is assumed to have no effect on umklapp scattering. A theoretical model is presented to quantify the relative phonon-scattering effectiveness of the three dominant defect types produced by ...
Lance L. Snead, S.J. Zinkle, D.P. White
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Journal of Physics D: Applied Physics, 2008 Thermal conductivity degradation of three semi-metallic ceramics: titanium carbide, zirconium carbide and titanium nitride, and a covalent compound: 6H silicon carbide, induced by irradiation with energetic heavy ions at room temperature, is studied and quantified.
Laurent David +6 more
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Journal of Materials Science & Technology, 2016 Zirconia-based bioceramics have been widely applied in the field of prosthodontics owing to its desirable mechanical performance, biocompatibility and aesthetics. However, the low-temperature degradation (LTD) of tetragonal zirconia (ZrO2) under intraoral condition can lead to the deterioration of mechanical properties of ZrO2 dental crowns, which ...
Huazhe Yang, Yang Ji
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Environmental degradation of ceramic materials in nuclear energy systems
, 2022 Hwasung Yeom, Kumar Sridharan
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The process of degradation of ceramic balls made of Si3N4-based materials in hybrid bearings
Conference PaperThe characteristic operating parameters for such equipment, like aviation GTEs, primarily include high speeds of the power shaft rotation and, consequently, high mechanical and thermal loads on the bearings. Ceramic materials, i.e., hybrid bearings, are proposed for the rolling elements in these bearing units.
Dmytro Kustovskyi +2 more
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Materials Letters, 2018 Abstract Improving the mechanical properties and maintaining the desired degradability of the bioceramic scaffold is always being a contradiction in the field of bone tissue engineering. To resolve this conflict, highly degradable mesoporous bioactive glass (MBG) was homogenously coated on the mechanically stronger hardystonite (Ca2ZnSi2O7, HT ...
Dandan Ye +4 more
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