Copper;samarium | 12645-14-6

• 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: Copper;samarium
• 英文别名: copper;samarium
• CAS: 12645-14-6
• 化学式: Cu₂Sm
• 分子量: 277.452
• InChiKey: BSTLPRXDQPBOTL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 重原子数：
  3
• 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：

  铜 、 三氢化钐 以 melt 为溶剂， 生成 Copper;samarium
  参考文献：
  名称：

  SmCu2 的低温 X 射线衍射、传输特性、比热、热膨胀和磁性研究

  摘要：

  已经研究了正交晶系 SmCu2 的各种物理特性（低温 X 射线衍射、电阻率、热导率、热电势、比热、热膨胀和磁化率）。已经观察到 J=5/2 Hund 基态的显着贡献。从热膨胀实验中获得的整体晶体场分裂的估计值为 110 K。磁熵表明双基态，因为观测值 (Sm=5.50+or-0.2 J mol-1 K-1 ) 非常接近理论 R ln 2。在电阻率和磁化率结果中可以看到 J=7/2 多重峰的额外影响。在磁振子热导率的框架内讨论了磁有序区域（尼尔温度 TN = 23 K）中热导率的显着增加。

  DOI：

  10.1088/0953-8984/2/6/008

文献信息

• Low-temperature X-ray diffraction, transport properties, specific-heat, thermal expansion and magnetic investigations of SmCu₂
  作者：E Gratz、N Pillmayr、E Bauer、H Muller、B Barbara、M Loewenhaupt

  DOI：10.1088/0953-8984/2/6/008

  日期：1990.2.12

  variety of physical properties (low-temperature X-ray diffraction, electrical resistivity, thermal conductivity, thermopower, specific heat, thermal expansion and susceptibility) of orthorhombic SmCu2 have been studied. A significant contribution of the J=5/2 Hund ground state has been observed. An estimation of the overall crystal-field splitting obtained from the termal expansion experiment yields

  已经研究了正交晶系 SmCu2 的各种物理特性（低温 X 射线衍射、电阻率、热导率、热电势、比热、热膨胀和磁化率）。已经观察到 J=5/2 Hund 基态的显着贡献。从热膨胀实验中获得的整体晶体场分裂的估计值为 110 K。磁熵表明双基态，因为观测值 (Sm=5.50+or-0.2 J mol-1 K-1 ) 非常接近理论 R ln 2。在电阻率和磁化率结果中可以看到 J=7/2 多重峰的额外影响。在磁振子热导率的框架内讨论了磁有序区域（尼尔温度 TN = 23 K）中热导率的显着增加。
• Changing phase equilibria: A method for microstructure optimization and properties improvement in preparing anisotropic Sm2Fe17N3 powders
  作者：Cifu Lu、Xiufeng Hong、Xiaoqian Bao、Xuexu Gao、Jie Zhu

  DOI：10.1016/j.jallcom.2019.01.098

  日期：2019.5

  Sm2Fe17N3 compound possesses excellent intrinsic permanent magnet properties. Sm2Fe17N3 is usually produced by nitridation of the Sm2Fe17 alloy; however, it is difficult to avoid the formation of alpha-Fe and SmFe3 phases in the Sm-Fe system, which may have adverse effects on the magnetic properties of the final magnets. In this study, the three-phase region of SmCu + SmCu2 +Sm2Fe17 was determined experimentally and a partial isothermal section of the Sm-Fe-Cu phase diagram at 450 degrees C was established. Based on this newly determined three-phase region, a parent alloy free of alpha-Fe and SmFe3 phases was obtained and the effects of Sm-Cu assistant phases on the microstructure and magnetic properties of nitrided powder were investigated. Anisotropic Sm2Fe17N3 powders free of alpha-Fe and having a high (BH)(max) exceeding 31 MGOe and H-cj of 13.9 kOe were obtained using a parent alloy containing 3 at.% of Sm-Cu assistant phases. The magnetization reversal process of anisotropic Sm2Fe17N3 powders with and without alpha-Fe was investigated and the underlying mechanisms were analyzed. (C) 2019 Elsevier B.V. All rights reserved.
• Investigation of the phase diagrams of the Sm–Ni–Pb and Sm–Cu–Pb systems
  作者：L.D. Gulay

  DOI：10.1016/s0925-8388(02)00825-3

  日期：2003.1

  The phase diagrams of the Sm-Ni-Pb and Sm-Cu-Pb systems were constructed using X-ray phase analysis. Four ternary compounds SmNiPb (TiNiSi structure type, space group Pnma, a=7.3199(3) Angstrom, b=4.5769(2) Angstrom, c=7.8015(3) Angstrom), Sm2Ni2Pb (Mn2AlB2 structure type, space group Cmmm, a=4.087(1) Angstrom, b=14.187(3) Angstrom, c=3.716(1) Angstrom), Sm5NiPb3 (Hf5CuSn3 structure type, space group P6(3)/mcm, a=9.171(2) Angstrom, c=6.710(1) Angstrom) and Sm12Ni6Pb (Sm12Ni6In structure type, space group Im3, a=9.825(2) Angstrom) exist in the Sm-Ni-Pb system. Two ternary compounds SmCuPb (LiGaGe structure type, space group P6(3)mc, a=4.5965(2) Angstrom, c=7.4769(2) Angstrom) and Sm5CuPb3 (Hf5CuSn3 structure type, space group P6(3)/mcm, a=9.316(1) Angstrom, c=6.6881(4) Angstrom) exist in the Sm-Cu-Pb system. (C) 2002 Elsevier Science B.V. All rights reserved.
• The isothermal section of the phase diagram of Sm–Cu–Mg ternary system at 670 K
  作者：Bernard Marciniak、Volodymyr Pavlyuk、Ewa Rozycka-Sokolowska、Lukasz Karwowski、Zygmunt Bak

  DOI：10.1016/j.jallcom.2015.08.183

  日期：2015.12

  The isothermal section of the Sm-Cu-Mg system at 670 K was studied in the 0-50 at.% Mg concentration range. The phase analysis was carried out by scanning electron microscopy (SEM), electron probe microanalysis (EPMA), wavelength dispersive spectrometry (WDS) and X-ray powder diffraction (XRPD) techniques. The X-ray single crystal and powder analysis were used for structure investigations. Of the nine ternary phases (tau(1)-tau(9)) which were found to exist in this section are seven new phases, tau(1) - Sm60.1Cu26.4Mg13.5, tau(3) - Sm22.5Cu74.3Mg3.2, tau(4) - SmCu4Mg, tau(5) - SmCuMg, tau(6) -SmCuMg2, tau(7) - Sm81.2Cu10.3Mg8.5 and tau(8) - Sm4Cu10Mg3, and two known phases, tau(2) - Sm2Cu2Mg and tau(9) - SmCu9Mg2. As the result of our investigation the crystal structures of tau(2), tau(4), tau 5, tau 6 and tau 8 phases have been established. Moreover, it has been found that the solubility of Mg and Cu in Sm-Cu and Sm-Mg binary phases, respectively, is insignificant, and that the maximum solubility takes place in the case of Cu2Mg phase, which dissolves up to 5 at.% Sm. (C) 2015 Elsevier B.V. All rights reserved.
• Rotter, M.; Doerr, M.; Loewenhaupt, M., Physical Review B: Condensed Matter and Materials Physics, p. 1 - 6
  作者：Rotter, M.、Doerr, M.、Loewenhaupt, M.、Witte, U.、Svoboda, P.、et al.

  DOI：——

  日期：——