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
Collection
Citation
Description:
(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.
Rights:
Keyword: Sm-Ni alloy, Annealing, Microstructure, Magnetic property, Crystal structure
Date published: 2022-12-26
Publisher: Elsevier
Journal:
- Journal of Magnetism and Magnetic Materials (ISSN: 03048853) vol. 566 170323
Funding:
Manuscript type: Author's version (Submitted manuscript)
MDR DOI: https://doi.org/10.48505/nims.4628
First published URL: https://doi.org/10.1016/j.jmmm.2022.170323
Related item:
Other identifier(s):
Contact agent:
Updated at: 2024-10-29 16:44:05 +0900
Published on MDR: 2024-08-06 12:30:20 +0900
| Filename | Size | |||
|---|---|---|---|---|
| Filename |
latest submitted version-JMM.pdf
(Thumbnail)
application/pdf |
Size | 2.52 MB | Detail |