Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8152751 | Journal of Magnetism and Magnetic Materials | 2018 | 13 Pages |
Abstract
We report the magnetostriction andâ¯ã0â¯0â¯1ã texture of anisotropic polycrystalline CoFe2O4. Slurries with well dispersion and low sintering shrinkage are aligned by the magnetic field of 2â¯T and sintered to prepare highlyâ¯ã0â¯0â¯1ã textured CoFe2O4 samples. For the anisotropic sample, benefiting from theâ¯ã0â¯0â¯1ã fiber texture, a higher magnetostrictive property is achieved than that of isotropic polycrystalline sample prepared by dry compaction. The maximum magnetostriction up to â500â¯ppm at 1000â¯Oe is obtained, which reaches 85% of the highest value in single crystal (λ100â¯=â¯â590â¯ppm). Meanwhile, the maximum strain-field derivative is also improved to â0.97â¯ppm/Oe at 250â¯Oe, which is highly beneficial for sonar detector and force sensor applications.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Jiquan Wang, Jiheng Li, Xiaolong Li, Xiaoqian Bao, Xuexu Gao,