Results 251 to 260 of about 6,625,966 (272)
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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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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 ...
Snead, L. L. +2 more
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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 ...
Snead, L. L. +2 more
openaire +2 more sources
Long-term thermal/chemical degradation of ceramic candle filter materials
2014Commercial ceramic candle filters were exposed to harsh environments to determine the effects of alkali and steam on their long-term durability. Ceramic candle filters are composed of relatively coarse aggregates fixed by a ceramic bond. The filters studied include a clay-bonded, granular aluminosilicate candle and three types of clay-bonded, granular ...
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Environmental degradation of ceramic materials in nuclear energy systems
2022Hwasung Yeom, Kumar Sridharan
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Ceramic Coating on Mg Alloy for Enhanced Degradation Resistance as Implant Material
2023Md Mostafizur Rahman +6 more
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2014
Novel ceramic oxides have been increasingly focused in recent years because of their potentialapplications in environmental purification especially to treat organic contaminants present in water. In thisresearch work, a set of NiO-Co3O4 nano-ceramic composite materials were prepared by a simple refluxcondensation method using nickel acetate / cobalt ...
Mohamed Jaffer Sadiq, M. +1 more
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Novel ceramic oxides have been increasingly focused in recent years because of their potentialapplications in environmental purification especially to treat organic contaminants present in water. In thisresearch work, a set of NiO-Co3O4 nano-ceramic composite materials were prepared by a simple refluxcondensation method using nickel acetate / cobalt ...
Mohamed Jaffer Sadiq, M. +1 more
openaire +1 more source
Performance degradation in proton-conducting ceramic fuel cell and electrolyzer stacks
Journal of Power Sources, 2022Long Q Le, Jake Huang, Charlie Meisel
exaly
Investigation on the piezo-ceramic discoloration during the DC electrical degradation process
AIP Advances, 2021De Yi Zheng
exaly