金属学报  1984, Vol. 20 Issue (5): 357-364

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La_2O_3-Al_2O_3-CaF_2三元渣系中La_2O_3的活度

王常珍;叶树青;于丁羽;郭文全

东北工学院;东北工学院;中国科学院长春应用化学研究所;研究生;中国科学院金属研究所;研究生

ACTIVITY OF La_2O_3 IN LIQUID La_2O_3-Al_2O_3-CaF_2 SLAGS

WANG Changzhen; YE Shuqing; YU Dingyu; GUO Wenquan(Northeast University of Technology; Shenyang)(Manuscript 1 August; 1983; revised manuscript 20 December; 1983)

王常珍;叶树青;于丁羽;郭文全. La_2O_3-Al_2O_3-CaF_2三元渣系中La_2O_3的活度[J]. 金属学报, 1984, 20(5): 357-364.
, , , . ACTIVITY OF La_2O_3 IN LIQUID La_2O_3-Al_2O_3-CaF_2 SLAGS[J]. Acta Metall Sin, 1984, 20(5): 357-364.

摘要 参考文献 相关文章 Metrics 全文: PDF(522 KB)   摘要: 实验测得La_2O_3-Al_2O_3-CaF_2三元渣系不同组成时La_2O_3的活度,并作出等活度图;同时确定该渣系在1600℃下的熔化区域。活度测定所依据的反应为 (La_2O_3)+3C2[La]Sn+3CO↑ 由实验结果得知:当La_2O_3浓度不变时,La_2O_3活度随CaF_2浓度的增加或Al_2O_3浓度的减少而增加;当CaF_2或Al_2O_3浓度不变时,La_2O_3活度都随La_2O_3浓度的增加而增加。 Abstract：The activity of La_2O_3 in liquid slags of various composition of La_2O_3-Al_2O_3-CaF_2 ternary system has been determined by equilibrating the slag with liquid Sn in a graphite crucible under one atmosphere of CO at 1600℃ in Mo-wire furnace. The iso-activity diagram and the liquid boundary for La_2O_3 at 1600℃ were ascertained. It was resulted that the activity of La_2O_3 increases with the increase of CaF_2 concentration or with the decrease of Al_2O_3 concentration when the La_2O_3 concentration remained constant; and with the increase of La_2O_3 concentration when the concentration of OaF_2 and Al_2O_3 remained constant. 收稿日期: 1984-05-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 王常珍 叶树青 于丁羽 郭文全 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1984/V20/I5/357 1 王常珍;邹元爔,金属学报,16(1980) ,190． 2 王常珍;杨代银,金属学报,15(19179) ,433． 3 王渭源;邹元爔,金属学报,6(1963) ,40． 4 邹元爔;赵彭年;曹兆民,金属学报,6(1963) ,121． 5 Ernest, M.; Chou Yuanhsi(邹元爔); Chao Pengnian (赵彭年), Sci. Sinica, 11(1962) , 1287． 6 Chou Yuanhsi(邹元爔); Chow Jichcng(周继程); Chao Pengnian(赵彭年)Sci. Sinica, 12(1963) , 1249． 7 Levin, E. M.; Robbins, C. R.; McMurdie, H. F., Compiled at the National Burcanu of Standards, Eds. Reser, M. K., Am. Ceram. Soc., 2nd ed. 1969, p. 124, Fig. 312． 8 郭祝崑;严东生.硅酸盐学报,1(1962) ,1． 9 Levin, E. M.; Robbins, C. R.; McMurdie, H. F., Compiled at the National Bureau of Standards, Ed. Reser, M. K., Am. Ceram. Soc. 2nd ed. 1969, p. 470, Fig. 1673．] No related articles found! Viewed Full text Abstract Cited   Shared      Discussed