摘要
利用DTA研究了ErCl_3CaCl_2LiCl三元体系相图。发现该相图有对应于ErCl_3、CaCl_2、LiCl和Li_3ErCl_6的4个液相面,5条二次结晶线,一个三元低共熔点E(58.5%ErCl_3,23.7%CaCl_2,17.8%LiCl,397℃),一个三元转熔点P(52.5%ErCl_3,27.2%CaCl_2,20.3%LiCl,428℃)。相应的4相平衡反应为:L=ErCl_3+Li_3ErCl_6+CaCl_2;L+LiCl=Li_3ErCl_6+CaCl_2.
The phase diagram of ternary system ErCl_3-CaCl_2- LiCl has been investigated by means of DTA. It was found that there are four fields corresponding to the primary crystallization of ErCl_3,CaCl_2. LiCl and Li_3ErCl_6 respectively, five univariant curves related to the secondary crystallization, a ternary eutectic E(58. 5% ErCl_3, 23. 7% CaCl_2, 17.8% LiCl, 397℃) and a ternary peritectic point P(52. 5% ErCl_3 , 27. 2% CaCl_2, 20. 3% LiCl, 428℃) in the phase diagram. Two ternary reactions occur in the system : L = ErCl3+ Li_3ErCl_6 +CaCl_2; L+LiCl = Li_3ErCl_6-CaCl_2
出处
《中国稀土学报》
CAS
CSCD
北大核心
1996年第1期28-32,共5页
Journal of the Chinese Society of Rare Earths
基金
国家自然科学基金
关键词
三元体系
相图
稀土熔盐
稀土氧合物
rCl_3
ErCl_3-CaCl_2-LiCl ternary system
Phase diagram