18.97.14.91
18.97.14.91
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SCIE SCOPUS
액상 기지상에서 성장하는 입자의 입도분포
Size Distribution of Grains during Coarsening in Liquid Matrix
강찬형 ( Chan Hyoung Kang )
UCI I410-ECN-0102-2008-580-001859066

The theoretical basis of Ostwald ripening has been reviewed with particular reference to the effect of medium grain fraction on the size distribution. And the procedure to obtain a reliable size distribution by linear intercept method has been specified in detail for cobalt grains in 50% Co-50% Cu alloy at 1,200℃. Systematic tests are performed to confirm the validity of the observed grain intercept distributions. The shortcomings of chi-square test are discussed. The grain intercept distribution approaches to a stabilized form when the number of intercepts reaches about 1,000 and that of photo-micrographs 5 to 6. This result does not vary with the grouping method of intercept size classes. During coarsening, the size distribution maintains a stationary form, which is consistent with the theoretical predictions for diffusion controlled growth when the grain volume fraction exceeds about 0.5.

[자료제공 : 네이버학술정보]
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