ListarDFisA-Artículos, capítulos... por tema "Peierls mechanism"
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Analysis of a kink pair model applied to a peierls mechanism in basal and prism plane slips in sapphire (α-Al2O3) deformed between 200° and 1800°C
(The American Ceramic Society, 2008)A model based on dislocation glide controlled by the nucleation and propagation of kink pairs in a high Peierls stress crystal is revisited and modified to account for changes in dislocation densities and segment lengths ... -
α-Al2O3 sapphire and rubies deformed by dual basal slip at intermediate temperatures (900–1300 °C): I. Dislocation organization
(Elsevier, 2009)Under a load orientation that hinders twinning and impedes fracture, sapphire and Cr-doped α-Al2O3 single crystals (rubies) were deformed from 1500 °C to slightly above the brittle to ductile transition temperature of 900 ...