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Plastic Deformation in Fine-Grain Ceramics
Plastic deformation in fine-grain (i.e., = or < 10 micrometers) ceramics is discussed. It is shown that fine-grain polycrystals can be exceptionally ductile, the fine grain size enhancing diffusional deformation and grain boundary sliding processes. The deformation is sensitive to both grain size and temperature. The influence of grain size, strain-rate, and temperature on the deformation of fine-grain alumina was studied. A brief review of the literature on plastic deformation in fine-grain magnesia, beryllia, thoria, and urania indicates that grain boundary sliding may be important for each of these materials.
Plastic Deformation in Fine-Grain Ceramics
Plastic deformation in fine-grain (i.e., = or < 10 micrometers) ceramics is discussed. It is shown that fine-grain polycrystals can be exceptionally ductile, the fine grain size enhancing diffusional deformation and grain boundary sliding processes. The deformation is sensitive to both grain size and temperature. The influence of grain size, strain-rate, and temperature on the deformation of fine-grain alumina was studied. A brief review of the literature on plastic deformation in fine-grain magnesia, beryllia, thoria, and urania indicates that grain boundary sliding may be important for each of these materials.
Plastic Deformation in Fine-Grain Ceramics
A. H. Heuer (author) / R. M. Cannon (author) / N. J. Tighe (author)
1970
27 pages
Report
No indication
English
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