东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2004, Vol. 25 ›› Issue (11): 1088-1090.DOI: -

• 论著 • 上一篇    下一篇

TiO_2电解制取Al-Ti合金

于旭光;邱竹贤   

  1. 东北大学材料与冶金学院;东北大学材料与冶金学院 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2004-11-15 发布日期:2013-06-24
  • 通讯作者: Yu, X.-G.
  • 作者简介:-
  • 基金资助:
    国家重点基础研究发展规划项目(G19990064903)

Preparation of Al-Ti alloy by electrolysing TiO2 in aluminium bath

Yu, Xu-Guang (1); Qiu, Zhu-Xian (1)   

  1. (1) Sch. of Mat. and Metall., Northeastern Univ., Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2004-11-15 Published:2013-06-24
  • Contact: Yu, X.-G.
  • About author:-
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摘要： 采用工业铝电解质体系,在Na3AlF6 Al2O3中加入TiO2,在熔融状态下电解,直接得到Al Ti合金·利用扫描电镜对产物的形貌和化学成分做了分析,结果表明实验可行,合金中Ti的质量分数可达到9%以上,超过已往文献报道·而且Ti与Al以化合物的形式存在·此类产品可作为母合金使用·对熔盐电解法制备Al Ti合金的机理作了初步探讨,认为与Al Si合金的形成具有相似的机理:Al还原了TiO2中的金属Ti,与预先放置的铝(阴极)构成Al Ti合金;Ti与Al同时在阴极析出,形成Al Ti合金·保持一定的条件,电解能够始终进行·

关键词: 熔盐, 电解, AlTi母合金, Na3AlF6Al2O3体系

Abstract: Al-Ti alloys were produced by molten salt electrolysis using the molten Na3AlF6-Al2O3 system as electrolyte with TiO2 added to it. The morphology and chemical composition of such products were analysed using SEM. The results indicated that the Ti-mass fraction in alloys could be over 9% which exceeded that had been reported by earlier works. The morphological observation showed that Al and Ti existed in form of compounds. Such products can be used as master alloys. The mechanism of preparing Al-Ti alloys by molten salt electrolysis was discussed and regarded as similar to Al-Si alloy formation, because TiO2 was reduced by Al and both Ti and Al were precipitated simultaneously on cathode. So, keeping certain conditions constant will enable the whole electrolysis process to end up.

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