Cobalt;tungsten | 12052-61-8

• 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: Cobalt;tungsten
• CAS: 12052-61-8
• 化学式: Co₃W
• 分子量: 360.83
• InChiKey: MXFBMGOVOWSEKU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 重原子数：
  4
• 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：

  钴 、 tungsten monocarbide 、 tungsten carbide 以 neat (no solvent) 为溶剂， 生成 Cobalt;tungsten
  参考文献：
  名称：

  Effect of sintering temperature on the phase composition and microhardness of WC-8 wt % Co cemented carbide

  摘要：

  The effect of sintering temperature (800-1600 degrees C) on the phase composition, density, and microhardness of WC-8 wt % Co cemented carbide has been studied using x-ray diffraction, scanning electron microscopy, optical microscopy, and density measurements. The results indicate that, during sintering of the starting powder mixture, containing not only WC and Co but also the lower carbide W2C and free carbon, W2C reacts with cobalt metal to form Co3W. At sintering temperatures from 900 to 1200 degrees C, the reaction intermediate is the ternary carbide phase Co6W6C. During sintering at 1300 degrees C, this phase reacts with carbon to form Co3W3C. Sintering at 1000 degrees C and higher temperatures is accompanied by the formation of a cubic solid solution of tungsten carbide in cobalt, beta-Co(WC). The density and microhardness of the sintered samples have been measured as functions of sintering temperature, and the optimal sintering temperature has been determined.

  DOI：

  10.1134/s002016850706009x

文献信息

• Effect of sintering temperature on the phase composition and microhardness of WC-8 wt % Co cemented carbide
  作者：A. S. Kurlov、A. A. Rempel’

  DOI：10.1134/s002016850706009x

  日期：2007.6

  The effect of sintering temperature (800-1600 degrees C) on the phase composition, density, and microhardness of WC-8 wt % Co cemented carbide has been studied using x-ray diffraction, scanning electron microscopy, optical microscopy, and density measurements. The results indicate that, during sintering of the starting powder mixture, containing not only WC and Co but also the lower carbide W2C and free carbon, W2C reacts with cobalt metal to form Co3W. At sintering temperatures from 900 to 1200 degrees C, the reaction intermediate is the ternary carbide phase Co6W6C. During sintering at 1300 degrees C, this phase reacts with carbon to form Co3W3C. Sintering at 1000 degrees C and higher temperatures is accompanied by the formation of a cubic solid solution of tungsten carbide in cobalt, beta-Co(WC). The density and microhardness of the sintered samples have been measured as functions of sintering temperature, and the optimal sintering temperature has been determined.