gold-zirconium | 194083-81-3

• 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: gold-zirconium
• 英文别名: Gold--zirconium (1/1)；gold;zirconium
• CAS: 194083-81-3
• 化学式: AuZr
• 分子量: 288.19
• InChiKey: YPANPSDPZOVDOM-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

• 作为产物：
  描述：

  锆 、 金 以 melt 为溶剂， 生成 gold-zirconium
  参考文献：
  名称：

  ZrAu晶体结构的中子粉末衍射研究

  摘要：

  摘要 已通过中子粉末衍射对放置在真空石英管中以避免氧化的铸锭进行了 ZrAu 的晶体结构和结构转变研究。在 300-1273 K 的温度范围内，已观察到两种结构转变，并由电阻率测量结果证实。第一个发生在大约 670 K 并且是二阶跃迁，因为它不会产生任何差热分析 (DTA) 事件。如前所述，第二个发生在 840 K。在每个温度区间，导出与收集到的数据兼容的完整结构模型并用于 Rietveld 分析。在室温和 670 K 之间，发现结构为三斜 (P 1 , a=11.537(8) A, b=4.841(1) A, c=11.507(7) A, α=87.42(1)°, β= 104.82(1)° 和 γ=92.41(2)° 在 300 K）。

  DOI：

  10.1016/j.jallcom.2003.10.056

文献信息

• Study of the nanostructuration of ZrAu alloy near the ambient temperature by X-ray diffraction and thermal analyses
  作者：M Isa、J.-Ch Valmalette、Ch Muller、M Lomello-Tafin、P Gas、E Elkaı̈m

  DOI：10.1016/j.jallcom.2003.10.037

  日期：2004.6

  Spontaneous nanostructuration in air of the crystallized ZrAu alloy has been followed by X-ray diffraction using both synchrotron radiation and conventional laboratory X-ray source. This has allowed the study of the degradation of this compound from 25 to 150 degreesC with an accurate step in time adapted to the very fast oxidation kinetic (2 mum of oxide layer per day at room temperature). From these experiments the activation energy (E-a) of the mechanism has been determined by the way of an original approach consisting in the analysis of the temperature dependent evolution of the integrated intensity of a selected ZrAu diffraction peak. Furthermore, this activation energy has been compared with the one obtained from thermogravimetric analysis. The two independent techniques giving consistent information, average activation energy of 55 kJ mol(-1) was associated with this unusual phenomenon. We have shown that no significant oxidation behavior is observed under pure oxygen below 100degreesC. The study of the phenomenon under pure oxygen, the microstructural analysis of the oxide layer and the study of the influence of relative humidity (RH) on the oxidation rate, allows us to attribute the oxidation mechanism to an atmospheric oxidation mechanism controlled by the dissociation of gaseous oxidative species at the alloy/air interface. (C) 2003 Elsevier B.V. All rights reserved.
• The Zr-Au system
  作者：M. Lomello-Tafin、P. Galez、J.C. Gachon、P. Feschotte、J.L. Jorda

  DOI：10.1016/s0925-8388(96)03124-6

  日期：1997.7

  The Zr-Au system has been reinvestigated by means of differential thermal analysis, X-ray diffraction and electron probe microanalysis. Our main result concerns the discovery of two new intermetallics: Zr3Au2 and ZrAu. The existence of the Au-rich phases, ZrAu4, ZrAu3, ZrAu2 and Zr7Au10, was confirmed and we clarified their type of formation. The stability regions of Zr3Au, Zr2Au and the two new phases have been also determined. (C) 1997 Elsevier Science S.A.