LaCl_3-PrCl_3二元系相图的研究  

Phase Diagram of Binary System LaCl_3- PrCl_3

作　　者：李玉生[1] 田凯 张俊卿[3] 王觅堂[3] 

机构地区：[1]内蒙古科技大学化学与化工学院,内蒙古包头014010 [2]包头钢铁集团炼铁厂,内蒙古包头014010 [3]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《稀土》2013年第6期20-23,共4页Chinese Rare Earths

基　　金：国家自然科学基金项目资助(51202104)

摘　　要：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。The phase diagram of binary system LaCl3-PrCl3 was determined by DTA. It was found there was an incon- gruent compound LaCl3-PrCl3 with a pcritectic point at 640℃ containing PrCl3 59.8% （in mole per cent） and an eutectic point at 562℃ containing PrCl3 70.0% （ in mole per cent） in the LaCl3-PrCl3 system. 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 the theory of polarization and counter - polarization.

关 键 词：LaCl3-PrCl3 二元体系 相图 相图规律 

分 类 号：O642.4[理学—物理化学]