Publication Date:
2019-07-12
Description:
Measurements were made of the kinetics of thermal grooving at the intersection of rhombohedral twin boundaries with the (1 0 -1 0) plane in alumina, at temperatures from 1773 to 2273 K. An analysis of the values obtained on the basis of the model of Mullins (1957) indicated that surface diffusion was the dominant mass transport mechanism. Comparisons are made with the results of other investigations of alumina, and an equation is derived for the surface diffusion value.
Keywords:
NONMETALLIC MATERIALS
Type:
Journal of Materials Science (ISSN 0022-2461); 21; 419-423
Format:
text
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