| 低温电解质[K3AlF6Na3AlF6]-AlF3-A12O3熔体中TiB2-C复合阴极的耐腐蚀性能 |
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| 引用本文： | 张凯,方钊,吕晓军,赖延清,李劼.低温电解质[K3AlF6Na3AlF6]-AlF3-A12O3熔体中TiB2-C复合阴极的耐腐蚀性能[J].中南大学学报(自然科学版),2011,42(3). |
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| 作者姓名： | 张凯 方钊 吕晓军 赖延清 李劼 |
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| 作者单位： | 中南大学冶金科学与工程学院,湖南长沙,410083 |
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| 基金项目： | 国家重点基础研究发展规划项目，国家高技术研究发展计划项目，国家科技支撑计划项目(2009BAE85B02)" |
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| 摘 要： | 采用模压-焙烧技术制备沥青、呋喃、酚醛和环氧基TiB2-C复合阴极,研究其在K3AlF6/Na3AlF6]-A1F3-Al2O3 熔体中的低温电解腐蚀行为.研究结果表明:TiB2-C复合阴极均有着良好的铝液润湿性;沥青基TiB2-C复合阴极耐腐蚀性能较差,其腐蚀率和碱金属(K和Na)渗透速率分别为8.09 mm/a和10.6 mm/h:相比之下,酚醛基TiB2-C 复合阴极的耐腐蚀性能最好,其腐蚀率和碱金属的渗透速率分别为3.05 mm/a和4.72 mm/h,分别比沥青基TiB2-C 复合阴极下降62.3%和55.5%;树脂基TiB2-C复合阴极的抗碱金属渗透能力较好,其中又以酚醛基TiB2-C复合阴极的抗碱金属渗透能力最强;树脂黏结剂的使用可以在一定程度上改善TiB2-C复合阴极的耐腐蚀性能.
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| 关 键 词： | 铝电解 低温电解 黏结剂 TiB2-C 复合阴极 耐腐蚀性能 |
Corrosion resistance of TiB2-C cathode composites for aluminum electrolysis in[K3AlF6/Na3AlF6]-AlF3-Al2O3 melts |
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| ZHANG Kai,FANG Zhao,L Xiao-jun,LAI Yan-qing,LI Jie.Corrosion resistance of TiB2-C cathode composites for aluminum electrolysis in[K3AlF6/Na3AlF6]-AlF3-Al2O3 melts[J].Journal of Central South University:Science and Technology,2011,42(3). |
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| Authors: | ZHANG Kai FANG Zhao L Xiao-jun LAI Yan-qing LI Jie |
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| Institution: | ZHANG Kai,FANG Zhao,L(U) Xiao-jun,LAI Yan-qing,LI Jie |
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| Abstract: | Pitch,furan,phenolic aldehyde and Epoxy based TiB2-C cathode composites were prepared in the mould pressing-baking process,and their corrosion resistance in K3AlF6/Na3AlF6]-AlF3-Al2O3 melts was studied.The results show that no matter what kind of binder is used,TiB2-C cathode composites have the good wetting property by liquid aluminum.Pitch based TiB2-C cathode composite has the poor corrosion resistance,and its corrosion rate and penetration rate of alkali metals(K,Na) is 8.09 mm/a and 10.6 mm/h respecti... |
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| Keywords: | aluminum electrolysis low temperature electrolysis binder TiB2-C cathode composites corrosion resistance |
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