| Antioxidation Study of Sm（Co, Cu, Fe, Zr）z-Sintered Permanent Magnets by Metal Injection Molding |
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| 引用本文： | 张深根,田建军,曲选辉,陶斯武. Antioxidation Study of Sm（Co, Cu, Fe, Zr）z-Sintered Permanent Magnets by Metal Injection Molding[J]. 中国稀土学报(英文版), 2006, 24(5): 569-573. DOI: 10.1016/S1002-0721(06)60165-8 |
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| 作者姓名： | 张深根 田建军 曲选辉 陶斯武 |
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| 作者单位： | School of Materials Science and Engineering University of Science and Technology Beijing，School of Materials Science and Engineering University of Science and Technology Beijing，School of Materials Science and Engineering University of Science and Technology Beijing，School of Materials Science and Engineering University of Science and Technology Beijing，Beijing 100083 China Beijing 100083 China Beijing 100083 China Beijing 100083 China |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金，Program for New Century Excellent Talents in University (NCET) |
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| 摘 要： | 2∶17type Sm(Co ,Cu ,Fe ,Zr)zpermanent mag-nets originatedfromthe investigationinthe 1970s .Sm(Co ,Cu ,Fe ,Zr)zpermanent magnets have excellentintrinsic magnetic properties such as very high Curietemperature , high anisotropy fields , and relativelyhigh saturation magnetizations[1 ~4]. Hence the mag-nets play an i mportant role in national defence andmodernindustry .Because of the high brittleness of Sm(Co ,Cu ,Fe ,Zr)zpermanent magnets ,theirtransfor-mationinto complex,small ,precision …
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| 关 键 词： | 金属喷射模塑法 钐 钴 铜 铁 锆 永磁体 抗氧化 稀土元素 |
| 文章编号： | 1002-0721（2006）05-0569-05 |
| 收稿时间： | 2006-01-06 |
| 修稿时间： | 2006-05-26 |
Antioxidation Study of Sm(Co, Cu, Fe, Zr)z-Sintered Permanent Magnets by Metal Injection Molding |
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| Shengen , Jianjun Tian, Xuanhui Qu,Siwu Tao. Antioxidation Study of Sm(Co, Cu, Fe, Zr)z-Sintered Permanent Magnets by Metal Injection Molding[J]. Journal of Rare Earths, 2006, 24(5): 569-573. DOI: 10.1016/S1002-0721(06)60165-8 |
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| Authors: | Shengen Jianjun Tian Xuanhui Qu Siwu Tao |
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| Affiliation: | aSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | Antioxidation effects on Sm(Co, Cu, Fe, Zr)z-sintered magnets treated by different methods were studied through TGA and DTA. Microstructure of Sm(Co, Cu, Fe, Zr)z-sintered magnets was analyzed through SEM and EDS.The results indicate that the antioxidation effect of the alloy powder treated in silane solution is better than that of the other methods. The alloy powders treated in stearic acid (SA) solution and polymethyl methacrylate (PMMA) solution can prevent powders from oxidation for a short period of time. Silane solution is not suitable for metal injection molding (MIM) because it severely damages the magnetic properties and microstructure of Sm(Co, Cu, Fe, Zr)z-sintered magnets. SA solution can not only prevent powders from oxidizing in MIM, but also does not damage magnetic properties and microstructure of Sm(Co,Cu, Fe, Zr)z magnets. The oxygen content of Sm(Co, Cu, Fe, Zr)z-sintered magnets by MIM is 3300 μg·g-1. |
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| Keywords: | metal injection molding Sm(Co,Cu,Fe,Zr)z permanent magnets antioxidation rare earths |
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