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Grain Growth in UO 2 ‐Al,O 3 in the Presence of a Liquid Phase
Author(s) -
LAY K. W.
Publication year - 1968
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1968.tb11896.x
Subject(s) - coalescence (physics) , grain growth , liquid phase , materials science , grain size , thermodynamics , phase (matter) , kinetics , analytical chemistry (journal) , mineralogy , metallurgy , chemistry , chromatography , physics , organic chemistry , quantum mechanics , astrobiology
The theory of grain growth in the presence of a liquid phase is examined using modifications of equations derived for coalescence of solid particles widely dispersed in a liquid. Although the grain diameter‐time relation can still be represented by d 3 = kt , the absolute growth rates are increased as the amount of liquid is decreased. The grain growth kinetics in UO 2 compacts containing 0.5 wtyo A1 2 O 3 were studied for temperatures between 1960° and 2200°C. The interrelation of grain size, temperature, and time is in agreement with that predicted by the theory.