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

• Investigation of the intermetallic phase stabilities and phase equilibria in Cu-Co-Sm system. Part 1: Cu-Sm system
  作者：I. Bajenova、E. Gvozdeva、A. Khvan、V. Cheverikin

  DOI：10.1016/j.jallcom.2023.170276

  日期：2023.9

  The binary Cu-Sm system is one of the basic sub-systems, necessary for the development of the materials used as permanent magnets. Nonetheless, there can be found numerous inconsistencies in the phase equilibria data for the system. The current work deals with the evaluation of the phase stabilities of the intermetallic phases in the system and phase equilibria in the Cu-Sm system with the DTA, SEM/EPMA

  二元 Cu-Sm 系统是基本子系统之一，是开发用作永磁体的材料所必需的。尽管如此，系统的相平衡数据仍存在许多不一致之处。目前的工作涉及使用 DTA、SEM/EPMA 和XRD 方法评估系统中金属间相的相稳定性和 Cu-Sm 系统中的相平衡。已发现Cu 6 Sm和Cu 5 Sm表现出一些均匀性范围。已证实 CuSm 是通过包晶反应形成的，而不是通过全等熔化形成的。更新的相平衡数据总结在新版本的 Cu-Sm 相图中。发现 Cu 6 Sm 相的硬度为 335 ± 29 HV。
• 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：——