2016 Fiscal Year Final Research Report
Establishment of analytical method utilizing cathodoluminescence phenomenon
| Project/Area Number |
26709056
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Metal making/Resorce production engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
KAWAI Jun 京都大学, 材料工学専攻, 教授 (60191996)
WAGATSUMA Kazuaki 東北大学, 金属材料研究所, 教授 (30158597)
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| Research Collaborator |
ONO Koichiro
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | カソードルミネッセンス / 希土類磁石 / 非金属介在物 / SEM-CL |
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| Outline of Final Research Achievements |
We tried to establish analytical methods for detecting rare-earth elements in magnets and non-metallic inclusions in steels utilizing cathodoluminescence (CL) phenomenon. Scanning electron microscope-cathodoluminescence (SEM-CL) analysis was applied for the measurements in this study. It was found that SEM-CL analysis is advantageous over conventional SEM-EDX and SEM-WDX analyses for detecting trace rare-earth elements in NdFeB magnets, particularly dysprosium and terbium. We also showed that SEM-CL analysis can detect non-metallic inclusions more than dozen micrometers in size in one minute by capturing their CL images.
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| Free Research Field |
材料分析化学
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