Magnetic properties of glass-ceramics obtained by crystallization of iron-rich borosilicate glasses
眼镜陶艺的磁性由充满铁的 borosilicate 眼镜的结晶化获得了作者机构：National Institute of Materials Physics Bucharest Magurele 077125 Romania Department of Physics US Naval Academy Annapolis MD USA National Institute of Materials Physics Bucharest Magurele 077125 RomaniaFaculty of Physics Bucharest University Bucharest-Magurele 077125 Romania
出 版 物：《Journal of Advanced Ceramics》 (先进陶瓷（英文）)
年 卷 期：2017年第6卷第3期
页 面：251-261页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：supported by a grant of the Romanian National Authority for Scientific Research and Innovation, CNCS/CCCDI-UEFISCDI ROMBRICKS, Core Program PN 10/2016 at NIMP supported by the Office of Naval Research at USNA
主 题：magnetite glass-ceramics AC susceptibility magnetic relaxation nucleating agent
摘 要：The specific dynamic magnetic response and magnetic relaxation phenomena in magnetite-based glass-ceramics by controlled crystallization of Fe-rich borosilicate glasses with 25 wt% Fe2O3, in the presence of two types of nucleating agents, Cr2O3 and P2O5, were investigated. The magnetic response is complex and shows contributions arising from two subsystems: a system with collective characteristics, superspin-glass like, and another one with single particle characteristics (superparamagnetic) with dipolar interaction. The nucleating agents have strong influence on the characteristic temperatures and anisotropy energy.
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