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Study of gamma-ray irradiation effect on permanent magnets
Gao, RS; Zhen, L; Shao, WZ; Hao, XP; Sun, XY; Yang, L; Wang, BY; Hao XP(郝小鹏); Wang BY(王宝义)
2008
发表期刊JOURNAL OF APPLIED PHYSICS
卷号103期号:7页码:2147483647
通讯作者[Gao, R. S. ; Zhen, L. ; Shao, W. Z. ; Sun, X. Y. ; Yang, L.] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China ; [Gao, R. S.] Tsinghua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China ; [Hao, X. P. ; Wang, B. Y.] Chinese Acad Sci, Inst High Energy Phys, Key Lab Nucl Anal Tech, Beijing 100049, Peoples R China
文章类型Article; Proceedings Paper
摘要Irradiation damage of FeCrCo, AlNiCo, SmCo, and NdFeB permanent magnets was investigated by using gamma-ray irradiation. Results of magnetic property measurement show that FeCrCo and NdFeB have more demagnetization than AlNiCo and SmCo. X-ray diffraction analysis shows that gamma-ray irradiation leads to the increase of FeCrCo crystal mismatch and decrease of AlNiCo ordering degree. The investigations by positron annihilation spectroscopy technique show that the defects in AlNiCo and SmCo increase after gamma-ray irradiation. The defects induced by gamma-ray irradiation in NdFeB magnets are not the main source that leads to partial demagnetization. The irradiation resistances of these magnets are discussed in detail considering the thermal stability, coercivity mechanisms, and defect damage. (C) 2008 American Institute of Physics.
学科领域Physics
研究领域[WOS]Physics ; Physics
DOI10.1063/1.2832868
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语种英语
研究领域[WOS]Physics ; Physics
WOS类目Physics, Applied
WOS记录号WOS:000255043200548
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/241071
专题多学科研究中心
作者单位中国科学院高能物理研究所
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Gao, RS,Zhen, L,Shao, WZ,et al. Study of gamma-ray irradiation effect on permanent magnets[J]. JOURNAL OF APPLIED PHYSICS,2008,103(7):2147483647.
APA Gao, RS.,Zhen, L.,Shao, WZ.,Hao, XP.,Sun, XY.,...&王宝义.(2008).Study of gamma-ray irradiation effect on permanent magnets.JOURNAL OF APPLIED PHYSICS,103(7),2147483647.
MLA Gao, RS,et al."Study of gamma-ray irradiation effect on permanent magnets".JOURNAL OF APPLIED PHYSICS 103.7(2008):2147483647.
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