The effect of annealing on magnetic properties, phase structure and evolution of free volumes in Pr-Fe-B-W metallic glasses

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• 作者：K. Filipecka^a ; ^b ; P. Pawlik^a ; J. Filipecki^b ; ^{j.filipecki@ajd.czest.pl}
• 关键词：Permanent magnets ; Rapid solidification ; X-ray diffraction ; Rietveld analysis ; Mö ; ssbauer spectroscopy ; Positron annihilation lifetime spectroscopy
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：694
• 期：Complete
• 页码：228-234
• 全文大小：1640 K
• 卷排序：694

文摘

Annealing of Fe65Pr9B22W4 alloy ribbons results in changes of magnetic properties. Heat treatment causes the formation of hard magnetic and paramagnetic phases. For the short-time annealed samples the dominant is paramagnetic Pr1+xFe4B4 phase. Crystallite sizes and unit cell parameters changes with annealing temperatures. Coercivity increase with the increase in size of defects present in the samples.