tungsten-aluminium dust | 64544-46-3

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 各种混合金属/非金属
• 英文名称: tungsten-aluminium dust
• 英文别名: Mono-tungsten-Aluminum；aluminum - tungsten；aluminium-tungsten；tungsten-aluminium；tungsten-aluminum；Aluminium--tungsten (1/1)；alumane;tungsten
• CAS: 64544-46-3
• 化学式: AlW
• 分子量: 210.832
• InChiKey: UTSDGYKWHMMTDM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.19
• 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：

  tungsten-aluminium dust 、 Graphite 以 neat (no solvent, solid phase) 为溶剂， 1550.0 ℃ 、50.0 MPa 条件下， 反应 8.17h， 生成
  参考文献：
  名称：

  无粘结相块体(W0.5Al0.5)C0.65的反应热压制备、显微组织和力学性能

  摘要：

  摘要 无任何粘结相的块状(W 0.5 Al 0.5 )C 0.65 由W 0.5 Al 0.5 和C. Pure (W 0.5 Al 0.5 )C 0.65 的球磨粉末通过反应热压成功制备，无沉淀石墨或无粘结相。由于(W 0.5 Al 0.5 )C y 中的碳空位可达50%，因此合成了脆性亚碳化物相。(W 0.5 Al 0.5 )C 0.65 的晶粒生长可以通过短时间的反应热压完全致密化来抑制。在 50 MPa 的压力下，在 1550 °C 下保持 10 分钟，可以完成几乎完全致密的产品（99.3%），晶粒尺寸约为 0.2 μm。块状超细无粘结剂 (W 0.5 Al 0.5 )C 0.65 表现出优异的机械性能。

  DOI：

  10.1016/j.jallcom.2016.04.066
• 作为产物：
  描述：

  钨 、 氢化铝 以 neat (no solvent, solid phase) 为溶剂， 生成 tungsten-aluminium dust
  参考文献：
  名称：

  Synthesis and high-pressure sintering of (W0.5Al0.5)C

  摘要：

  A new solid solution of Al in WC, which can be expressed by the chemical formula (W0.5Al0.5)C, has been synthesized directly by reaction milling (RM) of a W0.5Al0.5 alloy and the proper amount of carbon. The total reaction time is about 50 h. The ESEM photograph shows that the prepared (W0.5Al0.5)C powders are spherical, and the average particle size is about 40 nm. (W0.5Al0.5)C has been identified to crystallize in the hexagonal space group P-6m2 (No. 187) and belongs to the WC structure type. The lattice parameter of (W0.5Al0.5)C is calculated to be a = 2.908(1) angstrom, c = 2.836(1) angstrom. This nanocrystalline powder can be well sintered at the high temperature (1600 degrees C) under the high pressure (4.5 GPa), and the relative density reaches 99.1%. The hardness of the sintered (W0.5Al0.5)C is tested to be 1500 +/- 50 kg mm(-2), while the density is about 9.417 +/- 0.003 g cm(-3), which is far lower than that of WC. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.materresbull.2004.12.010

文献信息

• Preparation of W–Al alloys by mechanical alloying
  作者：H.G Tang、X.F Ma、W Zhao、X.W Yan、R.J Hong

  DOI：10.1016/s0925-8388(02)00760-0

  日期：2002.12

  W1-xAlx (x=0-0.86) alloys were synthesized by mechanically alloying the pure metal powder mixtures at designated compositions by conventional high-energy ball milling. The W-Al alloys were stable under high pressure and high temperature. The alloys were lighter than W. The hardness and oxidation resistance of the alloys was greatly improved compared to both W and Al. (C) 2002 Elsevier Science B.V. All rights reserved.
• Synthesis and high-pressure sintering of (W0.5Al0.5)C
  作者：Junmin Yan、Xianfeng Ma、Wei Zhao、Huaguo Tang、Changjun Zhu、Shuguang Cai

  DOI：10.1016/j.materresbull.2004.12.010

  日期：2005.4

  A new solid solution of Al in WC, which can be expressed by the chemical formula (W0.5Al0.5)C, has been synthesized directly by reaction milling (RM) of a W0.5Al0.5 alloy and the proper amount of carbon. The total reaction time is about 50 h. The ESEM photograph shows that the prepared (W0.5Al0.5)C powders are spherical, and the average particle size is about 40 nm. (W0.5Al0.5)C has been identified to crystallize in the hexagonal space group P-6m2 (No. 187) and belongs to the WC structure type. The lattice parameter of (W0.5Al0.5)C is calculated to be a = 2.908(1) angstrom, c = 2.836(1) angstrom. This nanocrystalline powder can be well sintered at the high temperature (1600 degrees C) under the high pressure (4.5 GPa), and the relative density reaches 99.1%. The hardness of the sintered (W0.5Al0.5)C is tested to be 1500 +/- 50 kg mm(-2), while the density is about 9.417 +/- 0.003 g cm(-3), which is far lower than that of WC. (c) 2005 Elsevier Ltd. All rights reserved.
• 10.1007/s10789-008-1005-y
  作者：Raskolenko、Gerul'skii

  DOI：10.1007/s10789-008-1005-y

  日期：——
• Bulk ultrafine binderless (W0.4Al0.6)C prepared by high pressure sintering
  作者：Zhuhui Qiao、XianFeng Ma、Wei Zhao、Huaguo Tang、Junmin Yan、Shuguang Cai、Bo Zhao

  DOI：10.1016/j.jallcom.2006.11.124

  日期：2008.4

  Pure (W0.4Al0.6)C powder of about 1 mu m in diameter was sintered by the high pressure sintering (HPS) process without the addition of any binder phase. The microstructure, Vickers micro hardness and density versus the sintering time and temperature are well described. The most suitable sintering condition under pressure of 4.5 GPa is 1873 K for 8 min. Under this sintering condition, the hardness can reach 2295 kg mm(-2) and the relative density can reach 98.6%. (c) 2006 Elsevier B.V. All rights reserved.
• Preparation, microstructure and mechanical properties of bulk (W0.5Al0.5)C0.65 without binder phase by reactive hot-pressing
  作者：Jianwei Liu、Xianfeng Ma、Huaguo Tang、Wei Zhao、Zhenye Zhao

  DOI：10.1016/j.jallcom.2016.04.066

  日期：2016.9

  phase was successfully produced by reactive hot-pressing from the ball-milled powders of W 0.5 Al 0.5 and C. Pure (W 0.5 Al 0.5 )C 0.65 without precipitated graphite or the brittle sub-carbide phase was synthesized due to the carbon vacancy in (W 0.5 Al 0.5 )C y can reach 50%. Grain growth of (W 0.5 Al 0.5 )C 0.65 could be suppressed with full densification by reactive hot-pressing for a short sintering

  摘要 无任何粘结相的块状(W 0.5 Al 0.5 )C 0.65 由W 0.5 Al 0.5 和C. Pure (W 0.5 Al 0.5 )C 0.65 的球磨粉末通过反应热压成功制备，无沉淀石墨或无粘结相。由于(W 0.5 Al 0.5 )C y 中的碳空位可达50%，因此合成了脆性亚碳化物相。(W 0.5 Al 0.5 )C 0.65 的晶粒生长可以通过短时间的反应热压完全致密化来抑制。在 50 MPa 的压力下，在 1550 °C 下保持 10 分钟，可以完成几乎完全致密的产品（99.3%），晶粒尺寸约为 0.2 μm。块状超细无粘结剂 (W 0.5 Al 0.5 )C 0.65 表现出优异的机械性能。