Aluminium--holmium (2/3) | 12004-31-8

• 英文名称: Aluminium--holmium (2/3)
• 英文别名: alumane;holmium
• CAS: 12004-31-8
• 化学式: Al₂Ho₃
• 分子量: 548.754
• InChiKey: SOCFHKKNYZWMBA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -2.37
• 重原子数：
  5
• 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：

  氢化钬 、 氢化铝 以 melt 为溶剂， 生成 Aluminium--holmium (2/3)
  参考文献：
  名称：

  Giant magnetic refrigerant capacity in Ho3Al2 compound

  摘要：

  Magnetic properties and magnetocaloric effects (MCEs) of the intermetallic Ho3Al2 compound are investigated by magnetization and heat capacity measurements. Two successive magnetic transitions, a spin-reorientation (SR) transition at T-SR=31 K followed by a ferromagnetic (FM) to paramagnetic (PM) transition at T-C=40 K, are observed. Both magnetic transitions contribute to the MCE and result in a large magnetic entropy change (Delta S-M) in a wide temperature range. The maximum values of -Delta S-M and adiabatic temperature change (Delta T-ad) reach 18.7 J/kg K and 4.8 K for the field changes of 0-5 T, respectively. In particular, a giant value of refrigerant capacity (RC) is estimated to be 704 J/kg for a field change of 5 T, which is much higher than those of many potential refrigerant materials with similar transition temperatures. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.ssc.2012.04.004