Acta Metallurgica Sinica (English Letters) ›› 2009, Vol. 22 ›› Issue (6): 415-420.DOI: 10.1016/S1006-7191(08)60117-9

• 研究论文 • 上一篇    下一篇

Amorphous Forming Ability of Co-X (X=Cr, Mo, W) Magnetic Thin Films

秦高梧1;肖娜1;杨波1;任玉平1;裴文利1;赵骧2   

  1. 1. 东北大学
    2. 东北大学材料各向异性和织构教育部重点实验室
  • 收稿日期:2009-01-14 修回日期:2009-03-27 出版日期:2009-12-25 发布日期:2009-12-16
  • 通讯作者: 秦高梧

Amorphous forming ability of Co-X(X=Cr, Mo, W)  magnetic thin films

Gaowu QIN, Na XIAO, Bo YANG, Yuping REN,Wenli PEI, Xiang ZHAO   

  1. Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University,Shenyang 110004, China
  • Received:2009-01-14 Revised:2009-03-27 Online:2009-12-25 Published:2009-12-16
  • Contact: Gaowu QIN

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摘要：

Co-X (X=Cr, Mo, W) magnetic thin films were prepared by using DC magnetron sputtering, and their structures were examined by using X-ray diffraction (XRD). The amorphous forming ability (AFA) of the three alloy systems was discussed based on thermodynamic calculation and experiments. The results show that the Co-Mo thin films exhibit the largest AFA among them, and the Co-W thin films are condition-dependent amorphous while the Co-Cr thin films are hard to be amorphous, which is consistent with the thermodynamic calculation. The difference in AFA for the alloys of these three systems is finally ascribed to three main factors: differences in electronegativity, electron density and atomic size between Co and X elements.

关键词: amorphous forming ability, Co-Cr, Co-Mo, Co-W

Abstract:

Co-X(X=Cr, Mo, W) magnetic thin films were prepared by using DC magnetron sputtering, and their structures were examined by using X-ray diffraction (XRD). The amorphous forming ability (AFA) of the three alloy systems was discussed based on thermodynamic calculation and experiments. The results show that the Co-Mo thin films exhibit the largest AFA among them, and the Co-W thin films are condition-dependent amorphous while the Co-Cr thin films are hard to be amorphous, which is consistent with the thermodynamic calculation. The difference in AFA for the alloys of these three systems is finally ascribed to three main factors: differences in electronegativity, electron density and atomic size between Co and X elements.

Key words: Amorphous forming ability, Co-Cr, Co-Mo, Co-W