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Characterization of TiB2 synthesized at high pressure and high temperature

Li Jun-Jun Zhao Xue-Ping Tao Qiang Huang Xiao-Qing Zhu Pin-Wen Cui Tian Wang Xin

Characterization of TiB2 synthesized at high pressure and high temperature

Li Jun-Jun, Zhao Xue-Ping, Tao Qiang, Huang Xiao-Qing, Zhu Pin-Wen, Cui Tian, Wang Xin
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Publishing process
  • Received Date:  31 August 2012
  • Accepted Date:  10 September 2012
  • Published Online:  05 January 2013

Characterization of TiB2 synthesized at high pressure and high temperature

  • 1. State key lab of superhard materials, Jilin University, Changchun 130012, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant Nos. 51172091, 51032001, 91022029), the National Found for Fostering Talents of basic Science (Grant No. J1103202), and the Program for New Century Excellent Talents in University.

Abstract: Bulk titanium borides (TiB2) have been successfully synthesized from the stoichiometric boron and titanium powders at high pressure and high temperature (HPHT). The density of TiB2 is higher than 99%. The Vicker's hardness of TiB2 as synthesized is 39.6 GPa which is near to result of the supehard materials. While TiB2 show good metallic characters with the resistivity, 10-8 Ωm, which is near to the value of the single crystal of TiB2. The enhanced properties of TiB2 as synthesized may be attributed to the higher density and uniform crystal size.

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