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Chinese Journal of High Pressure Physics  > 2000  >  14(3): 219-223 .
ZHOU Yu-Song, WU Xi-Jun, LI Bing-Han, XU Guo-Liang. Synthesis of Bulk Samples of Nanorystalline Tungsten[J]. Chinese Journal of High Pressure Physics, 2000, 14(3): 219-223 . doi: 10.11858/gywlxb.2000.03.011
Citation: ZHOU Yu-Song, WU Xi-Jun, LI Bing-Han, XU Guo-Liang. Synthesis of Bulk Samples of Nanorystalline Tungsten[J]. Chinese Journal of High Pressure Physics, 2000, 14(3): 219-223 . doi: 10.11858/gywlxb.2000.03.011
shu

Synthesis of Bulk Samples of Nanorystalline Tungsten

doi: 10.11858/gywlxb.2000.03.011
  • 1.

    Department of Materials and Engineering, Zhejiang University, Hangzhou 310027, China;

  • 2.

    No.52 Research Institute of China Ordnance Industry, Ningbo 315041, China

More Information
  • Corresponding author: ZHOU Yu-Song
  • Received Date: 21 Sep 1999
  • Rev Recd Date: 30 Dec 1999
  • Publish Date: 05 Sep 2000
    Abstract
  • The bulk nanocrystalline samples of the refractory metal tungsten (nano-W), with -phase tungsten and an average grain size of 34 nm, were synthesized using vacuum hot pressing technique under the pressure of 1 GPa and temperature of 570 ℃. The dimensions, density and microhardness of the nano-W are 10 mm1 mm, 88.8% of the theoretical density and 4.8 GPa, respectively. The density and microhardness of nano-W increase with pressure, temperature and time.

     

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