Synthesis of titanium nitride by a spark-discharge method in liquid ammonia

T. Sato, S. Yasuda, K. Usuki, T. Yoshioka, A. Okuwaki

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Titanium nitride powders were synthesized by the spark-discharge method in liquid ammonia at -78 to 130°C and 3.5-10.5 kV discharge voltage using titanium pellets as the starting materials. Titanium nitride possessing nitrogen defect, Tin1-x (x ≃ 0.5), was obtained as the main product, together with small amounts of α-Ti alloyed with nitrogen. The increase in temperature of the liquid ammonia resulted in an increase in the titanium nitride content in the product but a decrease in the powder production rate. By calcining the mixed powders of TiN1-x and α-Ti in a nitrogen atmosphere around 1200°C, stoichiometric TiN was obtained as single phase.

Original languageEnglish
Pages (from-to)2495-2499
Number of pages5
JournalJournal of Materials Science
Volume31
Issue number9
DOIs
Publication statusPublished - 1996 Jan 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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