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The mechanism of grain growth in ceramics

Author
Kapadia, C. M.
Published
JAN 1, 1972.
Physical Description
1 electronic document
Additional Creators
Leipold, M. H.
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary
The theory of grain boundary migration as a thermally activated process is reviewed, the basic mechanisms in ceramics being the same as in metals. However, porosity and non-stochiometry in ceramic materials give an added dimension to the theory and make quantitative treatment of real systems rather complex. Grain growth is a result of several simultaneous (and sometimes interacting) processes; these are most easily discussed separately, but the overall rate depends on their interaction. Sufficient insight into the nature of rate controlling diffusion mechanisms is necessary before a qualitative understanding of boundary mobility can be developed.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19730023692.
Accession ID: 73N32425.
NASA-CR-135673.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15747460