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| THERMAL DEMAGNETIZATION AND RANDOMNESS OF DOMAIN NUCLEATION OF SINGLE PHASE Nd_2Fe_(14)B |
| LUO Yang;JI Qigen;ZHANG Ning;SU Xiujin;SUN Dailiang Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing; Shandong University; Jinansenior engineer;Department of Precious Alloys;Central Iron and Steel Research Institute; Beijing |
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Cite this article:
LUO Yang;JI Qigen;ZHANG Ning;SU Xiujin;SUN Dailiang Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing; Shandong University; Jinansenior engineer;Department of Precious Alloys;Central Iron and Steel Research Institute; Beijing. THERMAL DEMAGNETIZATION AND RANDOMNESS OF DOMAIN NUCLEATION OF SINGLE PHASE Nd_2Fe_(14)B. Acta Metall Sin, 1988, 24(4): 322-327.
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Abstract Study on the temperature variation of domain revealed that the maindomains remain the same without change during heating, but the supplementary do-mains, such as the cone like reversal domains in the surface, would be changedboth in the size and shape, or even disappeared, while temperature is higher than240℃. Since the nucleation sites and the spontaneous orientation of nucleated do-main has some randomness, so the domain patterns should be changed every timeafter the thermal demagnetization higher than Curie point.
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Received: 18 April 1988
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1 罗阳,张宁,苏绣锦.金属学报,1987;23:A136
2 Morrish A H. The Physical Principles of Magnetism, New York: Wiley, 1965: 265
3 Luo Yang (罗阳), Zhang Ning (张宁). J Appl Phys, 1987; 61: 3445
4 Luo Yang (罗阳), Zhang Ning (张宁). Digests of Intermag'87, Tokyo, GH-04, |
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