| 添加剂对铝电解炭基阴极钠渗透膨胀过程的影响 |
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| 引用本文： | 刘庆生,薛济来,朱骏,李百松.添加剂对铝电解炭基阴极钠渗透膨胀过程的影响[J].北京科技大学学报,2008,30(4):403-407. |
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| 作者姓名： | 刘庆生 薛济来 朱骏 李百松 |
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| 作者单位： | 北京科技大学冶金与生态工程学院,北京,100083 |
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| 基金项目： | 高等学校博士学科点专项科研项目 |
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| 摘 要： | 为了提高现用铝电解炭基阴极的抗钠侵蚀性能,在实验室条件下研究了添加剂对铝电解炭基阴极钠渗透膨胀的影响.结果表明:添加B2O3能减缓钠的初期渗透和膨胀速率,但同时会增加阴极的终期膨胀量;而添加TiB2既能减少金属钠的渗透量,又能降低炭基阴极的钠膨胀率;当同时加入TiB2和B2O3时,能够进一步提高炭基阴极的抗钠渗透膨胀性能.
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| 关 键 词： | 铝电解 钠渗透 钠膨胀 炭基材料 添加剂 |
| 修稿时间： | 2007年2月14日 |
Effects of additives on the sodium penetration and expansion of carbon-based cathodes during aluminum electrolysis |
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| LIU Qingsheng,XUE Jilai,ZHU Jun,LI Baisong.Effects of additives on the sodium penetration and expansion of carbon-based cathodes during aluminum electrolysis[J].Journal of University of Science and Technology Beijing,2008,30(4):403-407. |
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| Authors: | LIU Qingsheng XUE Jilai ZHU Jun LI Baisong |
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| Abstract: | The experimental investigation of sodium penetration and expansion of carbon-based cathodes during aluminum electrolysis was carried out in a laboratory cell.The results show that the addition of B2O3 can reduce the rate of sodium penetration but increase the rate of sodium expansion at the final stage.The addition of TiB2 results in lower rates for both sodium penetration and sodium expansion.SEM-EDS analysis indicates that TiB2 B2O3 presents within the areas of binder phase of the cathode,which may play a role in reducing the rates of sodium penetration and expansion. |
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| Keywords: | aluminum electrolysis sodium penetration sodium expansion carbon-based materials additive |
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