The study on abnormal temperature characteristics of coercivity in Alnico 8 alloys

doi:10.1016/j.jmmm.2020.166865

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	The study on abnormal temperature characteristics of coercivity in Alnico 8 alloys
	Zhao, J. T.; Sun, Y. L.; Liu, L.; Zhang, X.; Liu, Z.; Feng, X. C.; Lee, D.; Yan, A. R.
刊名	JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
	2020
卷号	508
关键词	MAGNETS PHASE
DOI	10.1016/j.jmmm.2020.166865
英文摘要	The abnormal temperature characteristics of H-c in Alnico 8 alloys with thermomagnetic heat-treatment conditions are obtained at high temperature. The transmission electron microscopy (TEM) and Lorentz Fresnel images show that the a1 is the finite-nonlinear-dispersed magnetic nanoarray in spatial distribution. The angle dependence curves indicate the easy magnetization direction is still paralleled with the direction of columnar crystal growth and the magnetization reversal model is the incoherent rotation. Meanwhile the high temperature improves the magnetization reversal model from 30 degrees C to 240 degrees C and make it nearly steady above 240 degrees C. The reversal/irreversal reduced curves further reveal that improved magnetization reversal model makes a great effect on the magnetization reversal process. The B-H data and theoretical analysis illuminate that abnormal temperature characteristics of Hc from 30 degrees C to 240 degrees C primarily originates from the stronger effect of the improved magnetization reversal model.
学科主题	Materials Science ; Physics
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20583]
专题	2020专题
作者单位	Sun, YL (corresponding author), Chinese Acad Sci, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China.
推荐引用方式 GB/T 7714	Zhao, J. T.,Sun, Y. L.,Liu, L.,et al. The study on abnormal temperature characteristics of coercivity in Alnico 8 alloys[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2020,508.
APA	Zhao, J. T..,Sun, Y. L..,Liu, L..,Zhang, X..,Liu, Z..,...&Yan, A. R..(2020).The study on abnormal temperature characteristics of coercivity in Alnico 8 alloys.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,508.
MLA	Zhao, J. T.,et al."The study on abnormal temperature characteristics of coercivity in Alnico 8 alloys".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 508(2020).