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| 概要 |
In order to produce a lamellar eutectic Al-CuAl_2 composite with coase colonies, a melt-back technique was used together with unidirectional solidification. Composites with coase eutectic colonies lar...ger than 1cm in diameter were easily grown with the technique. The relation of λ^2 R=constant was also verified in those colonies, where λ is the lamellarspacing and R is the growth rate. The lamellar structure produced, however, was not themally stable and quickly agglomerated into globular particles at a high temperature just bulow the eutectic point.続きを見る
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