G. Vijayaragavan
;
D. Prabhu
;
M.B. Ponnuchamy
;
K.R.S. Preethi Meher
;
Ravi Gautam
;
Mainak Saha
(Metallurgical and Materials Engineering, Indian Institute of Technology Madras)
;
R. Gopalan
;
K.G. Pradeep
説明:
(abstract)The paper investigates the microstructure evolution and phase analysis of the Sm60Ni40 alloy. The arc melted sample retained the high temperature stable (>873 K) Sm7Ni3 and Sm3Ni2 phases along with the congruently melting SmNi phase. Annealing the as-cast sample at 903 K for 100 h stabilized the high temperature stable (873 K − 903 K) Sm3Ni2 phase. Rietveld refinement was performed to resolve the crystal structure of Sm3Ni2 phase and it was observed that Sm3Ni2 phase stabilizes in monoclinic crystal structure (space group: C2/m) with a lattice parameter of a = 13.49 Å, b = 3.75 Å, c = 9.68 Å and β = 106.6°. The Curie temperature of the Sm3Ni2 phase was determined to be ∼ 110 K. The high squareness ratio of 82 % along with high coercivity of 3 T indicates that the Sm3Ni2 phase possess spontaneous uniaxial magnetic anisotropy.
権利情報:
キーワード: Sm-Ni alloy, Annealing, Microstructure, Magnetic property, Crystal structure
刊行年月日: 2022-12-26
出版者: Elsevier
掲載誌:
研究助成金:
原稿種別: 査読前原稿 (Author's original)
MDR DOI: https://doi.org/10.48505/nims.4628
公開URL: https://doi.org/10.1016/j.jmmm.2022.170323
関連資料:
その他の識別子:
連絡先:
更新時刻: 2024-10-29 16:44:05 +0900
MDRでの公開時刻: 2024-08-06 12:30:20 +0900
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latest submitted version-JMM.pdf
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