Cobalt--dysprosium (3/4) | 12410-44-5

• 分子结构分类: 无机化合物 - 均相金属化合物 - 金属间过渡金属化合物
• 英文名称: Cobalt--dysprosium (3/4)
• 英文别名: cobalt;dysprosium
• CAS: 12410-44-5
• 化学式: Co₃Dy₄
• 分子量: 826.98
• InChiKey: OLHFNVDTJWLECZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 重原子数：
  7
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  氢化镝(DyH3) 、 钴 以 melt 为溶剂， 生成 Cobalt--dysprosium (3/4)
  参考文献：
  名称：

  The isothermal section of Tb–Dy–Co ternary system at 773K and magnetic property of (Tb1−xDyx)Co2 alloys

  摘要：

  The isothermal section of the phase diagram of the Tb-Dy-Co ternary system at 773 K was investigated by X-ray powder diffraction (XRD), differential thermal analysis (DTA) and scanning electron microscope (SEM). The result shows that this section consists of 9 single-phase regions and 8 two-phase regions, and no three-phase region. The compounds Tb2Co17 and Dy2Co17, Tb2Co7 and Dy2Co7, TbCo3 and DyCo3, TbCo2 and DyCo2, Tb4Co3 and Dy4Co3, Tb12Co7 and Dy12Co7. Tb3Co and Dy-3 CO form a continuous series of solid solutions. The single phases Th and Dy also form a continuous solid solution. The binary compounds TbCo5 and DyCo5 were not observed at 773 K. No ternary compound was found. In addition, we experimentally determined the vertical section of pseudobinary system and magnetic property of Tb1-xDyxCo2 (x from 0 to 1) series alloys, T-c decreases and the maximum magnetic entropy change |Delta S-M.max| increases with the increase of Dy content. The Arrott plots and the change of |Delta S-M.max| show that magnetic phase transition from second-order to first-order occurs with the increase of Dy content between x = 0.6 and 0.8. (C) 2009 Published by Elsevier B.V.

  DOI：

  10.1016/j.jallcom.2008.12.137

文献信息

• The isothermal section of Tb–Dy–Co ternary system at 773K and magnetic property of (Tb1−xDyx)Co2 alloys
  作者：X. Chen、Y.H. Zhuang、J.L. Yan、F. Fei

  DOI：10.1016/j.jallcom.2008.12.137

  日期：2009.6

  The isothermal section of the phase diagram of the Tb-Dy-Co ternary system at 773 K was investigated by X-ray powder diffraction (XRD), differential thermal analysis (DTA) and scanning electron microscope (SEM). The result shows that this section consists of 9 single-phase regions and 8 two-phase regions, and no three-phase region. The compounds Tb2Co17 and Dy2Co17, Tb2Co7 and Dy2Co7, TbCo3 and DyCo3, TbCo2 and DyCo2, Tb4Co3 and Dy4Co3, Tb12Co7 and Dy12Co7. Tb3Co and Dy-3 CO form a continuous series of solid solutions. The single phases Th and Dy also form a continuous solid solution. The binary compounds TbCo5 and DyCo5 were not observed at 773 K. No ternary compound was found. In addition, we experimentally determined the vertical section of pseudobinary system and magnetic property of Tb1-xDyxCo2 (x from 0 to 1) series alloys, T-c decreases and the maximum magnetic entropy change |Delta S-M.max| increases with the increase of Dy content. The Arrott plots and the change of |Delta S-M.max| show that magnetic phase transition from second-order to first-order occurs with the increase of Dy content between x = 0.6 and 0.8. (C) 2009 Published by Elsevier B.V.