| 铝薄膜对烧结NdFeB磁体耐蚀性能的影响 |
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| 引用本文： | 陈娥,彭坤,杨武霖,朱家俊,李德意,周灵平.铝薄膜对烧结NdFeB磁体耐蚀性能的影响[J].中国有色金属学会会刊,2014,24(9):2864-2869. |
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| 作者姓名： | 陈娥 彭坤 杨武霖 朱家俊 李德意 周灵平 |
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| 作者单位： | 湖南大学材料科学与工程学院;湖南大学湖南省喷射沉积技术与应用重点实验室; |
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| 基金项目： | Project(NCET-11-0127)supported by Program for New Century Excellent Talents in University,China;Project(K1306063-11)supported by the Key Project for Science and Technology of Changsha,China |
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| 摘 要： | 采用直流磁控溅射的方法在烧结NdFeB磁体表面沉积Al薄膜提高磁体的耐蚀性能。研究膜厚及溅射功率对薄膜结构和耐蚀性能的影响。利用SEM对Al薄膜的微观结构进行分析,并采用动态极化曲线和中性盐雾实验分析Al薄膜耐蚀性能。均匀致密的Al薄膜的形成是获得良好耐蚀性能的必要条件。在51-82 W溅射功率下制备的6.69μm的Al薄膜具有良好的耐蚀性能。
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| 关 键 词： | NdFeB 铝薄膜 磁控溅射 耐蚀性能 膜厚 |
| 收稿时间： | 23 September 2013 |
Effects of Al coating on corrosion resistance of sintered NdFeB magnet |
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| E CHEN,Kun PENG,Wu-lin YANG,Jia-jun ZHU,De-yi LI,Ling-ping ZHOU.Effects of Al coating on corrosion resistance of sintered NdFeB magnet[J].Transactions of Nonferrous Metals Society of China,2014,24(9):2864-2869. |
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| Authors: | E CHEN Kun PENG Wu-lin YANG Jia-jun ZHU De-yi LI Ling-ping ZHOU |
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| Affiliation: | E CHEN, Kun PENG, Wu-lin YANG, Jia-jun ZHU, De-yi LI, Ling-ping ZHOU(1. College of Materials Science and Engineering, Hunan University, Changsha 410082, China; 2. Hunan Province Key Laboratory of Spray Deposition Technology and Application, Hunan University, Changsha 410082, China) |
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| Abstract: | Pure Al coating was deposited on sintered NdFeB magnet by direct current（DC） magnetron sputtering to improve the corrosion resistance of magnet. The influences of coating thickness and sputtering power on microstructure and corrosion resistance of Al coating were investigated. The surface morphology of Al coating was characterized by scanning electron microscopy（SEM）. The corrosion properties were investigated by potentiodynamic polarization curves and neutral salt spray（NSS） test. The formation of the uniform and compact Al coating is a necessary condition to achieve excellent corrosion resistance. And the optimal corrosion resistance can be obtained in the sample with 6.69 μm thick Al coating deposited at 51-82 W. |
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| Keywords: | NdFeB aluminum coatings magnetron sputtering corrosion resistance coating thickness |
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