700℃熔盐电解制备固态钛铁合金化合物

材料研究学报, 2009, 23(2): 133-137.

700℃熔盐电解制备固态钛铁合金化合物

廖先杰翟玉春谢宏伟张懿

1.1.东北大学材料与冶金学院沈阳 1100042.中国科学院过程工程研究所北京 100080>

1.1.School of Material and Metallurgy

Northeastern University

Shenyang 1100142.Institute of the Process Engineering Research

Chinese Academy of Sciences

Beijing 100080>

基金项目: 国家自然科学基金50674026资助项目.

关键词：材料合成与加工工艺 , electrochemical , TiFe , Fe2Ti , molten salts , electro–deoxidation

Preparation of solid state Fe–Ti alloy compound by FFC in molten salts at 700^oC

LIAO Xianjie ZHAI Yuchun XIE Hongwei ZHANG Yi

Keywords： synthesizing and processing technics , 电化学 , 电脱氧 , 熔盐 , 钛铁合金 , TiFe, Fe₂Ti

采用熔盐电解法, 在700℃的NaCl--CaCl₂熔盐体系中直接电解固态金属氧化物制备钛铁合金化合物, 以固态Fe粉和TiO₂粉混合物为阴极, 石墨棒为阳极, 刚玉坩埚电解槽, 槽电压3.4 V. 结果表明, Fe粉和TiO₂粉被电解得到钛铁合金. 本文对Fe和TiO₂不同配比阴极进行了研究, 发现不同铁含量的阴极产物不同, 在前7 h内随着铁元素含量的增加电解反应速度提高.

The Ti–Fe alloy compound was prepared by FFC in the molten salts at 700^oC . The preformed cathode feed was fabricated with the slurry of mixing TiO₂ and Fe power. The graphite rod was used as the anode in the corundum crucible. At cell voltage of 3.4 V, electro–deoxidation was carried out. With different stoichiometric ratios of Fe and TiO₂powder, different currency–time plots were gotten, which showed that the more Fe addition, the quicker the reaction speed is during the first 7 hours deoxidation.

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