Preparation of strontium W-type hexaferrites in a low oxygen pressure and their magnetic properties

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• 作者：Jae-Hyoung You ; Hyo-Jin Kim ; Sang-Im Yoo ; ^{siyoo@snu.ac.kr}
• 关键词：W-type hexaferrite ; Low oxygen pressure ; Solid state reaction ; Saturation magnetization ; Anisotropy ; Oxygen deficiency
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：695
• 期：Complete
• 页码：3011-3017
• 全文大小：2104 K
• 卷排序：695

文摘

Pure phase of SrW could be obtained by sintering and subsequent furnace-cooling. Lowering the PO2 suppresses decomposition of SrW during cooling process. Porous structure of sintered body accelerates the decomposition process of SrW. Oxygen deficiency might increase Ms and Ha of SrW.