論文 Microstructure evolution and phase analysis of Sm60Ni40 alloy

G. Vijayaragavan ; D. Prabhu ; M.B. Ponnuchamy ; K.R.S. Preethi Meher ; Ravi Gautam ; Mainak Saha SAMURAI ORCID (Metallurgical and Materials Engineering, Indian Institute of Technology Madras) ; R. Gopalan ; K.G. Pradeep

コレクション

引用
G. Vijayaragavan, D. Prabhu, M.B. Ponnuchamy, K.R.S. Preethi Meher, Ravi Gautam, Mainak Saha, R. Gopalan, K.G. Pradeep. Microstructure evolution and phase analysis of Sm60Ni40 alloy. Journal of Magnetism and Magnetic Materials. 2022, 566 (), 170323. https://doi.org/10.1016/j.jmmm.2022.170323

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:

  • Journal of Magnetism and Magnetic Materials (ISSN: 03048853) vol. 566 170323

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

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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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