摘要
借助ＤＴＡ研究了ＮｄＣｌ＿３－ＳｒＣｌ＿２－ＣａＣｌ＿２三元体系相图。发现该体系内有对应于ＮｄＣｌ＿３、Ｓｒ＿３ＮｄＣｌ＿９、α＿１和α＿２的５个液相面，６条二次结晶线，一个三元低共熔点Ｅ（４７．０％ＮｄＣｌ＿３，２４．５％ＳｒＣｌ＿２；５６２°Ｃ）和三元转熔点Ｐ（４３．４％ＮｄＣｌ＿３，２５．３％ＳｒＣｌ＿２；５８７°Ｃ）．试用极化与反极化概念探讨了含稀土相图、化合物生成及其稳定性变化的规律。
The phase diagram of ternary system NdCl_3-SrCl_2-CaCl_2 has been investigated bymeans of DTA. It was found that there are 5 fields correspending to the primary cry-stallization of NdCl_3,Sr_3NdCl)3,α,α_1 and α_2 respectively and 6 univariant lines relatedto the secondary crystallization in the system. The two reactions occurred in this systemare:In addition to determination of the phase diagram,attempts were made to explorethe rule governing the alteration in the phase diagram containing rare earth chloride,colnpound formation and its stability base on the concept of polarization and counter-polarization.
出处
《北京大学学报（自然科学版）》
CAS
CSCD
北大核心
1994年第2期129-135,共7页
Acta Scientiarum Naturalium Universitatis Pekinensis
基金
国家自然科学基金
关键词
三元体系
氯化钕
氯化锶
氯化钙
NdCl_3
NdCl_3-SrCl_2-CaCl_2
Phase diagram
Rule of phase diagram
