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Combustion synthesis of TiB2 ceramics powder from B2O3−TiO2−Mg system in air atmosphere

  • He JinyunEmail author
  • Wang WeiminEmail author
  • Fu Zhengyi
  • Sun Hui
Article

Abstract

TiB2 ceramics powder was synthesized from B2O3−TiO2−Mg system. The effects of TiB2 addition as diluent on the combustion synthesis process were investigated. The results of thermodynamic calculation and experiments show that the increase of TiB2 content ranging from 0 to 20wt% can reduce the adiabatic temperature Tad from 3100 K to 2896 K and combustion temperature Tc from 2139 K to 1621 K respectively. The particle size and half width of the particle distribution are also increased with the addition of TiB2 increasing from 0 to 20wt%. The combustion product is a mixture of TiB2, MgO, and other intermediate phases. The leached product contains mainly TiB2, TiO2 and TiN, and its oxygen content is 7.77wt%.

Key words

combustion synthesis B2O3−TiO2−Mg TiB2 

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References

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Copyright information

© Wuhan University of Technology 2005

Authors and Affiliations

  1. 1.State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhanChina
  2. 2.Hubei Building Material Industry Research and Design InstituteWuhanChina

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