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金属学报  2012, Vol. 48 Issue (6): 739-743    DOI: 10.3724/SP.J.1037.2012.00071
  论文 本期目录 | 过刊浏览 |
KF-AlF3系溶剂组成对KBF4与Al熔体界面反应的影响
王青亮1,赵洪生2,沈利2,栗争光2,赵九洲1
1. 中国科学院金属研究所, 沈阳 110016
2. 包头铝业有限公司, 包头 014046
INFLUENCES OF KF-AlF3 SOLVENT COMPOSITIONS ON THE INTERFACIAL REACTIONS BETWEEN ALUMINUM AND KBF4
WANG Qingliang1, ZHAO Hongsheng2, SHEN Li2,LI Zhengguang2, ZHAO Jiuzhou1
1. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016
2. Baotou Aluminum Co., Ltd., Baotou 014046
全文: PDF(1176 KB)  
摘要: 研究了不同组成的KF-AlF3系溶剂对KBF4与Al熔体界面反应的影响. 结果表明,采用不同组成的KF-AlF3系溶剂时, 在氟化盐/Al界面处均有铝硼化合物层形成;当采用共晶成分或过共晶成分KF-AlF3溶剂时, 铝硼化合物层与Al之间存在的AlF3可使铝硼化合物层与Al局部或完全脱离; 当采用亚共晶成分KF-AlF3溶剂时, 在氟化盐/Al界面处未观察到AlF3存在.对不同组成KF-AlF3系溶剂和KBF4的反应过程进行了研究,分析了氟化盐/Al界面处AlF3的形成机理.
关键词 AlKBF4AlF3界面反应溶剂组成    
Abstract:Al-B alloys are widely used in industries. Their manufacturing has attracted great attentions. Generally, the Al-B master alloys are manufactured by reacting KBF4 with molten aluminum. A lot of work has been done to investigate the effects of reaction technologies on the manufacturing of Al--B alloys. But little attentions were paid to the reaction mechanisms at the interface between the aluminum melt and the fluoride salt. The interfacial reactions between Al and KBF4 play a critical role in the production of Al--B master alloys. Investigations on the interfacial reactions in four different KF-AlF3 solvents were carried out. It was demonstrated that a boride layer formed at the interface for all the four solvents. There existed AlF3 between the boride layer and the aluminum melt when the eutectic KF-AlF3 solvent or the hypereutectic solvents were used. AlF3 formed by the reaction  between BF3 and Al.
Key wordsAl    KBF4    AlF3    interfacial reaction    solvent composition
收稿日期: 2012-02-15     
ZTFLH: 

TG113.12

 
基金资助:

国家自然科学基金资助项目 u0837601

通讯作者: 赵九洲      E-mail: jzzhao@imr.ac.cn
作者简介: 王青亮, 男, 1982年生, 博士生

引用本文:

王青亮,赵洪生,沈利,栗争光,赵九洲. KF-AlF3系溶剂组成对KBF4与Al熔体界面反应的影响[J]. 金属学报, 2012, 48(6): 739-743.
YU Jing-Liang, DIAO Hong-Sheng, LIE Zheng-Guang, CHEN Li, DIAO Jiu-Zhou. INFLUENCES OF KF-AlF3 SOLVENT COMPOSITIONS ON THE INTERFACIAL REACTIONS BETWEEN ALUMINUM AND KBF4. Acta Metall Sin, 2012, 48(6): 739-743.

链接本文:

https://www.ams.org.cn/CN/10.3724/SP.J.1037.2012.00071      或      https://www.ams.org.cn/CN/Y2012/V48/I6/739

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