ZHOU Ban JIN Shiming SHAO Jun CHEN Nianyi Shanghai Institute of Metallurgy
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Academia Sinica
,
Shanghai
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China
金属学报(英文版)
An expert system,IMEC,for the retrieval and prediction of binary intermetallic compounds has been built.The rules found by chenlieal bond parameter-pattern recognition method have been used for computerized prediction.Data base of known mtermetallic compounds and chemical bond parameters of metallic elements and the knowledge proeessing system are in cluded in the expert system.By man-machine interfacing,the formation,stoichiometry and crystal type o fall binary intermetallic compounds can be predicted or retrieved.
关键词:
binary system
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null
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李玉生
,
田凯
,
张俊卿
,
王觅堂
稀土
利用DTA测定了LaCl3-PrCl3二元系相图,发现该体系有一个异份熔化化合物LaCl3 · PrCl3,转熔点为640 ℃,PrCl359.8％(摩尔分数);低共熔点为562 ℃,PrCl370.0％(摩尔分数).并用极化与反极化作用探讨含稀土相图、化合物生成及其稳定性变化的规律.
关键词:
LaCl3-PrCl3
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二元体系
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相图
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相图规律
