On the Sintering of Ti (N,C)-30wt%Ni and TiNX-TiCtY-30wt%Ni Mixed Powder Compacts

Mikio Fukuhara, Hiroyasu Mitani

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

As a shrinkage of Ti (N, C)-30wt%Ni mixed powder compacts during sintering was remarkably promoted not only in vacuum, but also in argon, hydrogen and nitrogen atmosphere without an abnormal expansion, we concluded that the abnormal expansion during sintering of TiN-TiC-Ni mixed powder compacts1 was caused by denitrification which took place during the formation of Ti (N, C) solid solution. Grain growth of sintered bodies was suppressed with an increase of nitrogen content of the nitrocarbide. In sintering of TiNx-TiCY-30wt%Ni mixed powder compacts, the expansion was arrested; the composition showing the maximum sintered density in the sintering condition at 1500°G for 1 hr. was TiN0.6-15wt%TiC-30wt%Ni. Use of TiCy powders also prevented the occurrence of the abnormal expansion during sintering.

Original languageEnglish
Pages (from-to)125-129
Number of pages5
Journaljournal of the japan society of powder and powder metallurgy
Volume27
Issue number4
DOIs
Publication statusPublished - 1980 Jan 1

ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys
  • Industrial and Manufacturing Engineering
  • Materials Chemistry

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