Yttrium-Copper | 12019-26-0

• 分子结构分类: 无机化合物 - 均相金属化合物 - 均相过渡金属化合物
• 英文名称: Yttrium-Copper
• 英文别名: copper yttrium；Copper;yttrium
• CAS: 12019-26-0
• 化学式: CuY
• 分子量: 152.452
• InChiKey: GBAOZECSOKXKEL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 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

反应信息

• 作为反应物：
  描述：

  、 Yttrium-Copper 以 neat (no solvent) 为溶剂， 生成
  参考文献：
  名称：

  Preparation of high-Tc superconductors from the melt

  摘要：

  DOI：

  10.1016/0921-4534(88)90644-2
• 作为产物：
  描述：

  氢化钇 、 铜 以 neat (no solvent) 为溶剂， 反应 8.0h， 生成 Yttrium-Copper
  参考文献：
  名称：

  Structural evolution of Cu(1−X)YX alloys prepared by mechanical alloying: Their thermal stability and mechanical properties

  摘要：

  In the present study, an attempt has been made to synthesize copper based disordered solid solutions by mechanical alloying (MA) of non-equilibrium compositions. The blended compositions of Cu-1% Y, Cu-3% Y, Cu-5% Y and Cu-7.5% Y (at.%) (all the compositions will be addressed as % only hereafter until unless it is mentioned) were ball-milled for 8 h, and then annealed at different temperatures (200-800 degrees C) for different length of duration (1-5 h) under high purity argon +2 vol.% H-2 atmosphere. X-ray diffraction (XRD) analysis and Gibbs free energy change calculation confirm the formation of disordered solid solution (up to 7.5%) of Y in Cu after milling at a room temperature for 8 h. The XRD grain size was calculated to be as low as 7 nm for 7.5% Y and 22 nm for 1% Y alloy. The grain size was retained within 35 nm even after annealing for 1 h at 800 degrees C. Transmission electron microscopy (TEM) analysis substantiates the formation of ultra-fine grained nanostructures after milling. Microhardness value of the as-milled samples was quite high (3.0-4.75 GPa) compared to that of pure Cu. The hardness value increased with increasing annealing temperatures up to 400 degrees C for the alloys containing 3-7.5% Y, and thereafter it showed a decreasing trend. The increase in the hardness after annealing is attributed to the formation of uniformly distributed ultrafine intermetallic phases in the nanocrystalline grains. The stabilization effect is achieved due to segregation of Y to reduce the grain boundary energy to zero and hindrance of dislocation movement due to precipitation of intermetallic phases. The tensile yield strength (sigma(y)) of the HPT consolidated nc Cu-1% Y and Cu-3% Y alloys was found to be at least one order of magnitude higher than that of the course grained-Cu counterpart, and the corresponding UTS (sigma(u)) value was more than four times higher. The strengthening effect is discussed in the light of the grain size refinement, solid solution strengthening and strain hardening. (C) 2014 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jallcom.2014.12.114

文献信息

• On the Origin of the Negative Thermal Expansion Behavior of YCu
  作者：Hiroshi Mizoguchi、Joonho Bang、Takeshi Inoshita、Toshio Kamiya、Hideo Hosono

  DOI：10.1021/acs.inorgchem.9b01988

  日期：2019.9.3

  which is stabilized by internal energy. At higher temperatures, Cu ions are bound loosely with Y ions due to the large Y–Cu distance (3.01 Å), which results in large vibration entropy and stabilizes a CsCl-type crystal structure. In addition, the CsCl-type structure is reinforced by the Y–Y interaction between next-nearest neighbors, resulting in a smaller unit cell volume. The crystal structure has

  在金属间化合物和合金中，YCu是一种不寻常的材料，因为它显示出负热膨胀而没有旋转序。由YCu的结构相变引起的此行为背后的机理尚未完全了解。为了深入了解这种机理，我们通过实验检查了YCu低温相的晶体结构，并借助热力学计算讨论了相变的起源。结果表明，高温（立方CsCl型）到低温（正交FeB型）结构相变是由三个共价键Y-Cu，Y-Y和Cu-的重排驱动的铜，它们竞争结合能和声子熵。在低温下 Y和Cu的混合不容易发生，因为从较小的负混合焓预期这些原子之间的吸引力很弱。这导致所有三种相互作用都参与键合，并且Y和Cu分离形成FeB型结构，并通过内部能量使其稳定。在较高的温度下，由于较大的Y-Cu距离（3.01Å），Cu离子与Y离子松散结合，这导致较大的振动熵并稳定了CsCl型晶体结构。另外，CsCl型结构通过最近邻之间的Y-Y相互作用得到增强，从而导致较小的晶胞体积。晶体结构具有简单的Y立方结构，其中含Y的Cu离子在空穴位置松散地结合。
• Structural and dynamical properties of Mg65Cu25Y10 metallic glasses studied by in situ high energy X-ray diffraction and time resolved X-ray photon correlation spectroscopy
  作者：B. Ruta、V.M. Giordano、L. Erra、C. Liu、E. Pineda

  DOI：10.1016/j.jallcom.2013.12.162

  日期：2014.12

  a temperature investigation of the structural and dynamical evolution of rapidly quenched metallic glasses of Mg65Cu25Y10 at the atomic length scale by means of in situ high energy X-ray diffraction and time resolved X-ray photon correlation spectroscopy. We find a flattening of the temperature evolution of the position of the first sharp diffraction peak on approaching the glass transition temperature

  我们通过原位高能 X 射线衍射和时间分辨 X 射线光子相关光谱法在原子长度尺度上对 Mg65Cu25Y10 快速淬火金属玻璃的结构和动力学演化进行了温度研究。我们发现在从玻璃态接近玻璃化转变温度时，第一个尖锐衍射峰的位置的温度演变趋于平坦，这反映出随着温度升高，甚至一个数量级的弛豫动力学出人意料地减慢。结构和动力学特性之间的比较加强了金属玻璃中应力引起的原子运动的想法，而不是纯粹的扩散原子运动。
• Effects of yttrium addition on thermoplastic formability of Zr-Cu-Ni-Al amorphous alloy under non-isothermal condition
  作者：Sirui Cheng、Jiahua Zhu、Jun Shen、Xianshun Wei

  DOI：10.1016/j.jallcom.2021.159684

  日期：2021.8
• Experimental studies of atomic structure, electronic structure, and the electronic transport mechanism in amorphous Al-Cu-Y and Mg-Cu-Y ternary alloys
  作者：T. Fukunaga、H. Sugiura、N. Takeichi、U. Mizutani

  DOI：10.1103/physrevb.54.3200

  日期：——

  The local atomic structure in the amorphous Al-x(Cu0.4Y0.6)(100-x) and M(x)(Cu0.4Y0.6)(100-x) (0 less than or equal to x less than or equal to 85) alloys was determined by neutron-diffraction experiments. The electronic structure near the Fermi level was deter mined using the same samples by means of a-ray photoemission spectroscopy and soft x-ray spectroscopy. Both set, of data are combined to determine self-consistently and uniquely the local atomic structure in both Al- and Mg-based amorphous alloys. The bonding nature and resulting atomic environment are found to depend significantly on whether the third element is AI or Mg. Based on the atomic and electronic structures thus derived, we could interpret the Al or Mg concentration dependence of the crystallization temperature, electronic specific-hear coefficient, and also that of the resistivity value of 300 K. The origin of the appearance of a positive Hall coefficient observed in the Al-based amorphous alloys but not in the Mg-based amorphous alloys is also briefly discussed.
• Quadrupolar coupling and structural instability in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Ho</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mi mathvariant="normal">−</mml:mi><mml:mi mathvariant="normal">x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Y</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="normal">x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>Cu
  作者：I. Abu-Aljarayesh、J. S. Kouvel、T. O. Brun

  DOI：10.1103/physrevb.36.2000

  日期：——