Low‐temperature synthesis of ultrafine TiB ₂ nanopowders by molten‐salt assisted borothermal reduction

Abstract

Abstract The synthesis of TiB 2 nanopowders arouses considerable interests due to its importance for implementing the extensive applications of TiB 2 ceramic. Herein, the high‐purity ultrafine TiB 2 nanopowders were successfully synthesized via a molten salt assisted borothermal reduction technique at a relatively low temperature of 1173 K using TiO 2 and B powders as precursors within a KC l/NaCl salt. The results showed that the as‐obtained TiB 2 nanopowders possessed a polycrystallinity structure, and their specific surface area and equivalent average particle size were 33.18 m 2 /g and 40 nm, respectively. This study provides a new low temperature synthesis technique of TiB 2 nanopowders.