郑朝贵
,
包成林
,
乔芝郁
,
叶于浦
金属学报
借助于DTA研究了PrCl_3-SrCl_2-CaCl_2体系相图。发现有对应于PrCl_3,Sr_3PrCl_9,α(SrCl_2,CaCl_2),α_1(CaCl_2,SrCl_2)和α_2(SrCl_2,CaCl_2)的五个液相面,六条二次结晶线,一个三元低共熔点E(48.0wt-％PrCl_3,23.5wt-％SrCl_2;590℃)和三元转熔点P(45.5wt-％PrCl_3,24.5wt-％SrCl_2;614℃)。并试图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:
PrCl_3
,
PrCl_3-SrCl_2-CaCl_2
,
phase diagram
,
phase diagram rule
ZHENG Chaogui BAO Chenglin QIAO Zhiyu YE Yupu Peking University
,
Beijing
,
China 1 University of Science and Technology Beijing
,
Beijing
,
China Associate Professor
,
Department of Chemistry
,
Peking University
,
Beijing 100871
,
China
金属学报(英文版)
Five fields corresponding to the primary crystallization of PrCl_3,Sr_3PrCl_9,α(SrCl_2, CaCl_2),α_1(CaCl_2,SrCl_2)and α_2(SrCl_2,CaCl_2)respectively,six univariant lines related to the secondary crystallization,one ternary eutectic(48.0 wt-% PrCl_3,23.5 wt-% SrCl_2; 590℃)and ternary peritectic point(45.5 wt-% PrCl_3,24.5 wt-% SrCl_2;614℃) were determined by DTA.Attempts were also made to explore the rule governing the alteration in the phase diagram containing rare earth chloride,formation of compound and its stability by means of polarization and counter-polarization.
关键词:
PrCl_3
,
null
,
null
,
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