Apply the conclusion on mercial method powder metallurgy, the low oxygen technics of rear earth permanent are supported, which advanced the performance and security.
Key Words: SmCo permanent , microstructure analyze , elements segregation,
oxygen content
目录
摘要 i
Abstract i
第一章前言..................................................................................................................I
稀土永磁发展过程............................................................................................ 1
2:17 型 SmCo 永磁研究动态 2
论文研究意义.................................................................................................... 2
实验方案............................................................................................................ 3
第二章实验原理及内容............................................................................................. 5
理论分析............................................................................................................ 5
2:17 型 SmCo 永磁体成分与磁性能的关系 5
2:17 型 SmCo 永磁体中的化合物 7
2:17 型 SmCo 永磁体的显微组织 8
2:17 型 SmCo 永磁体的矫顽机理 10
实验仪器及工作原理...................................................................................... 13
扫描电子显微镜工作原理....................................................................... 13
电子探针 X-射线显微分析工作原理 14
X 射线荧光分析仪工作原理 15
样品制备.......................................................................................................... 16
实验内容.......................................................................................................... 17 第三章材料微区形貌和成分偏析对性能的影响................................................... 19 SEM 断面形貌分析对比.................................................................................. 19
样品成分分析................................................................................................... 21
微区成分分析.......................................................................................
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