纳米晶磁芯瑞利区域的磁性表征

Magnetic Characterization in the Rayleigh Region of Nanocrystalline Magnetic Cores.

作者信息

Osinalde Mikel, Infante Pablo, Domínguez Lurdes, Blanco Juan Mari, Chizhik Alexander, Zhukova Valentina, Zhukov Arcady, González Julian

机构信息

R&D Department, ELESA Transformadores S.A., 20800 Zarauz, Gipuzkoa, Spain.

Department of Applied Physics I, University of the Basque Country, Plaza Europa s/n, 20018 San Sebastián, Spain.

出版信息

Materials (Basel). 2018 Nov 14;11(11):2278. doi: 10.3390/ma11112278.

DOI:10.3390/ma11112278

PMID:30441845

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6265792/

Abstract

We report on the structural and magnetic characterization of two nanocrystalline Finemet-type magnetic cores. The nanocrystalline structure developed after annealing the amorphous precursor alloy at 550 °C for 30 and 60 min of annealing time. Structural analysis carried out by means of X-ray diffraction providing useful information on the grain size mean and partial volume of the nanocrystalline phase. The magnetic characterization was focused mainly in the Rayleigh region which, influenced by the intergranular coupling, was found to be more efficient in the sample treated for a longer time with a finer nanocrystalline structure.

摘要

我们报告了两个纳米晶Finemet型磁芯的结构和磁性表征。在550°C下对非晶态前驱体合金进行30分钟和60分钟的退火后，形成了纳米晶结构。通过X射线衍射进行的结构分析提供了有关纳米晶相的晶粒尺寸平均值和部分体积的有用信息。磁性表征主要集中在瑞利区域，该区域受晶间耦合影响，发现在具有更精细纳米晶结构的长时间处理样品中效率更高。