Fluidized-bed reduction-nitridation of potassium titanate fibers

Abstract

Fluidized-bed reduction-nitridation of potassium titanate (K₂O·8TiO₂) fibers were carried out at 800∼1400°C for 1∼4 h in N₂, N₂-NH₃ and/or N₂-NH₃-C₆H₁₄. Reduction-nitridation of K₂O·8TiO₂ fibers was not occurred in N₂. However, TiN fibers were synthesized in N₂-NH₃ and/or N₂-NH₃-C₆H₁₄. The content of resultant TiN in N₂-NH₃-C₆H₁₄, was larger than the ones in N₂-NH₃. The diameter of the resultant fivers increased with increasing reaction temperature above 1100°C.