Thermophysical and elastic properties of titanium carbonitrides containing molybdenum and tungsten

Tetsushi Matsuda, Hideaki Matsubara

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Titanium carbonitride has good mechanical properties such as high hardness and high Young's modulus. It is a major raw material for Ti(C,N)-based cermets, and their properties are strongly dependent on the properties of titanium carbonitrides. The thermophysical and elastic properties of the carbonitride need to be systematically investigated, so as to be used for designing cutting tools and wear-resistant tools. The thermophysical and elastic properties of (Ti,Me)(C,N) (Me = Mo. W) sintered bodies prepared by hot-pressing at 2200 °C were evaluated. The porosities of the specimens were less than 1%. The Young's modulus decreased with increasing Mo, which seems to be the result of vacancy formation. The thermal expansion coefficient, the thermal conductivity and the Debye temperatures of (Ti,Me)(C,N) sintered bodies decreased with increasing Mo/W content.

Original languageEnglish
Pages (from-to)90-94
Number of pages5
JournalJournal of Alloys and Compounds
Volume562
DOIs
Publication statusPublished - 2013 Jun 15

Keywords

  • Ceramics
  • Elasticity
  • Mechanical properties
  • Sintering
  • Titanium carbonitride

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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