Effect of additive on corrosion resistance of NiFe_2O_4 ceramics as inert anodes
查看参考文献14篇
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文摘
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In order to improve the corrosion resistance of NiFe_2O_4 ceramics as inert anode, additive V_2O_5 was added to raw materials NiO and Fe_2O_3. The inert anodes of nickel-ferrite ceramics were prepared by powder metallurgic method and the static corrosion rate in Na_3AlF_6-Al_2O_3 was determined by mass loss measurement. The effect of V_2O_5 on sintering property and corrosion resistance was studied. The results show that V_2O_5 can promote the grain to develop completely and improve sintering property. EDS results show the reaction product Ni_2FeVO_6 distributes along the grain boundary. The corrosion tests show that V_2O_5 is beneficial to improving corrosion resistance remarkably. The reasons that V_2O_5 can improve the corrosion resistance must be V_2O_5 promoting the gains to develop completely and Ni_2FeVO_6 distributes along the grain boundary. The stable structure can control the chemical dissolution of ceramics anode and the reinforced grain boundary can control the grain-boundary corrosion rate. |
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来源
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Transactions of Nonferrous Metals Society of China
,2008,18(2):356-360 【核心库】
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DOI
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10.1016/s1003-6326(08)60062-x
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关键词
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NiFe_2O_4
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inert anode
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additive
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corrosion resistance
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地址
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1.
School of Materials Science and Engineering, China University of Mining and Technology(Xuzhou), Xuzhou, 221008
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School of Materials and Metallurgy, Northeastern University, Shenyang, 110004
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1003-6326 |
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学科
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矿业工程 |
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基金
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Science and Technology Foundation of China University of Mining and Technology, China
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Postdoctoral Scientific Research Foundation of Jiangsu Province, China
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文献收藏号
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CSCD:3252039
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14
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