钐钴合金 | 12052-78-7

• 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
• 中文名称: 钐钴合金
• 中文别名: 钴钐合金
• 英文名称: Cobalt;samarium
• CAS: 12052-78-7；12017-68-4
• 化学式: Co₀Sm₀
• 分子量: 77.2666
• InChiKey: KPLQYGBQNPPQGA-UHFFFAOYSA-N

物化性质

• 熔点：
  ~1325°
• 密度：
  8.60
• 暴露限值：
  ACGIH: TWA 0.02 mg/m3OSHA: TWA 0.1 mg/m3NIOSH: IDLH 20 mg/m3; TWA 0.05 mg/m3

计算性质

• 辛醇/水分配系数(LogP)：
  -0.0
• 重原子数：
  2
• 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

安全信息

• TSCA：
  Yes
• 危险等级：
  4.1

反应信息

• 作为产物：
  描述：

  cobalt(II) sulfamate 、 氯化钐 在 NH₂CH₂COOH 、 NH₄(NH₂SO₃) 作用下， 以 水 为溶剂， 生成 钴,(17:2)混合物和钐
  参考文献：
  名称：

  Electrodeposition of Sm–Co nanoparticles from aqueous solutions

  摘要：

  Supported Sm-Co nanoparticles have been synthesized by short pulse electrodeposition using aqueous solutions containing glycine as complexant and buffering agent. Nanoparticle composition is a function of pulse amplitude and pulse duration. Short pulses in particular minimize oxygen incorporation, down to 3 at%. X-ray photoelectron spectroscopy and X-ray diffraction data support the hypothesis that metallic alloys have indeed been obtained by this technique, along with mixed oxides of the metals. In-plane coercivities of up to 5.3 kOe have been achieved in as-plated nanoparticle assemblies when the relative Sm content was about 20 at% and particle size around 80 nm. These Sm-Co nanoparticles hold the promise to be a practical and inexpensive material for use in the synthesis of permanent magnets by powder processing. (C) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jmmm.2004.04.131

文献信息

• The ternary system SmCoZr isoplethic section at Co = 89 at.%
  作者：A. Lefevre、L. Cataldo、M.Th. Cohen-Adad、C.H. Allibert、N. Valignat

  DOI：10.1016/0925-8388(96)02309-2

  日期：1996.8

  industrial Sm 2 Co 17 -type magnets. A single-phase state is reported as precursor of the cellular microstructure of the Sm 2 Co 1 , permanent magnets. The formation of this phase at high temperature seems for a large part to be governed by Zr addition. In order to understand the behaviour of 2:17-type magnets, phase relationships have been investigated in the Co-rich field of the Sm Co Zr system. The

  摘要 要优化工业 Sm 2 Co 17 型磁体的烧结温度，必须了解固液平衡。据报道，单相状态是 Sm 2 Co 1 永磁体的蜂窝状微观结构的前体。该相在高温下的形成在很大程度上似乎是由 Zr 添加控制的。为了了解 2:17 型磁体的行为，已经在 Sm Co Zr 系统的富钴场中研究了相关系。对 1150°C 等温段进行了重新研究。观察到两相区域，包括六角形和菱形Sm 2 Co 12 。已经绘制了温度在 1150°C 和 Co - 89 at.%，(Sm + Zr) = 11 at.% 的合金熔点之间的等体积截面。已观察到两个四相平衡。
• Deformation-induced texture in nanocrystalline 2:17, 1:5 and 2:7 Sm–Co magnets
  作者：A.M. Gabay、M. Marinescu、J.F. Liu、G.C. Hadjipanayis

  DOI：10.1016/j.jmmm.2009.06.011

  日期：2009.10

  The effect of crystal structures on texture induced by hot plastic deformation was studied for Sm-Co, Sm-Zr-Co, Sm-Zr-Co- Fe and Sm-Co-Fe-Mn nanocrystalline alloys with 9-22 at% Sm. Nanocrystalline precursors were obtained via high-energy ball milling and subsequent hot consolidation; deformation was carried out at 800-1150 degrees C. The analysis of X-ray diffraction and magnetic measurements showed that the degree of the axial [001] texture after deformation was negligible for the ordered 2:17 structure, but became increasingly noticeable for the disordered 2:17 ("1:7"), 1:5 and 2:7 structures. Because of interplay of several factors including the [001] texture, saturation magnetization and magnetocrystalline anisotropy, there was no universal trend in the hard magnetic properties with the Sm content. Optimum compositions for the maximum energy product varied from Sm(11) (Co, Fe, Mn)(89) in the Sm-Co-Fe-Mn series to Sm(11)Zr(2)(Co, Fe)(87) in the Sm-Zr-Co-Fe series to Sm(17)(Co, Fe)(83) in the Sm-Co-(Fe) series. Iron substitution for cobalt strongly suppresses the 1:5 structure, whereas the Fe-free magnets based on the SmCo(5) compound showed by far the highest room-temperature coercivity. (C) 2009 Elsevier B.V. All rights reserved.
• Structure and magnetic properties of mechanically alloyed SmxCo1−x
  作者：J. Ding、P.G. McCormick、R. Street

  DOI：10.1016/0925-8388(93)90064-t

  日期：1993.2

  A study of the phase structure and magnetic properties of mechanically alloyed and heat-treated SmxCo1-x with x = 0.13 to 0.24 has been carried out. Remanence enhancement above 0.5 M(s) (M(s) = saturation magnetisation) was found in samples with x = 0.12 to 0.17 after annealing at 700-degrees-C. A maximum energy product of 16.6 M G Oe was measured for Sm0.13Co0.87. Coercive forces above 50 kOe were obtained for x = 0.17-0.20 after heat treatment at approximately 800-degrees-C. The highest value of 57 kOe was measured for Sm0.19Co0.81.