Paper Title:
Experiment Study on the Hot-Shock Consolidation of Tungsten Powder
  Abstract

Experiments have been conducted to consolidate tungsten powder using hot-shock consolidation technique combining with underwater shock wave. An exothermic mixture (TiO2-C-Al-Fe2O3) was ignited by an electric wire coil to release a large mount of heat via a self-propagating high-temperature synthesis reaction which was used to pre-heat the sample powder. As getting the needed isothermal temperature, the powder was subsequently consolidated by shock wave generated by explosion of nitro methane, with a detonation velocity of 6.3 km/s and a detonation pressure of 11.9 GPa. The density and Vickers micro-hardness of the consolidated sample were determined and its microstructure was analyzed by scanning electron microscope (SEM). High-density tungsten samples were obtained by optimizing the experimental conditions. In this paper, the relative density and hardness of the recovered sample are 96.5% and 670 HV, respectively.

  Info
Periodical
Edited by
S. Itoh, J.J. Yoh and K. Hokamoto
Pages
107-112
DOI
10.4028/www.scientific.net/MSF.673.107
Citation
Q. Zhou, P. W. Chen, X. Gao, W. P. Shen, "Experiment Study on the Hot-Shock Consolidation of Tungsten Powder", Materials Science Forum, Vol. 673, pp. 107-112, 2011
Online since
January 2011
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$32.00
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