Thermal plasma treatment of titanium carbide powders: Part II. In-flight formation of carbon-site vacancies and subsequent nitridation in titanium carbide powders during induction plasma treatment

Takamasa Ishigaki, Yusuke Moriyoshi, Takayuki Watanabe, Atsushi Kanzawa

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32 Citations (Scopus)

Abstract

The in-flight modification of titanium carbide powders was carried out in radio-frequency (rf) inductively coupled plasmas. The powders were partially melted and evaporated, and then subjected to modifications in morphology, size, and chemical composition. Both the Ar-H2 and Ar-N2 plasma treatments induced the formation of carbon-site vacancies in titanium carbide. The mixing of NH3 to Ar-H2 plasma at the plasma tail, and the Ar-N2 plasma treatment resulted in the partial substitution of carbon by nitrogen. The variation in physical and chemical modification was discussed compared with the predictions by the thermochemical analysis, and the numerically obtained heat transfer of our preceding paper.

Original languageEnglish
Pages (from-to)2811-2824
Number of pages14
JournalJournal of Materials Research
Volume11
Issue number11
DOIs
Publication statusPublished - Jan 1 1996
Externally publishedYes

Fingerprint

Plasma Gases
titanium carbides
Titanium carbide
Nitridation
thermal plasmas
Powders
Vacancies
induction
Carbon
flight
Plasmas
carbon
Chemical modification
Inductively coupled plasma
Substitution reactions
Nitrogen
Heat transfer
radio frequencies
chemical composition
heat transfer

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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abstract = "The in-flight modification of titanium carbide powders was carried out in radio-frequency (rf) inductively coupled plasmas. The powders were partially melted and evaporated, and then subjected to modifications in morphology, size, and chemical composition. Both the Ar-H2 and Ar-N2 plasma treatments induced the formation of carbon-site vacancies in titanium carbide. The mixing of NH3 to Ar-H2 plasma at the plasma tail, and the Ar-N2 plasma treatment resulted in the partial substitution of carbon by nitrogen. The variation in physical and chemical modification was discussed compared with the predictions by the thermochemical analysis, and the numerically obtained heat transfer of our preceding paper.",
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T2 - Part II. In-flight formation of carbon-site vacancies and subsequent nitridation in titanium carbide powders during induction plasma treatment

AU - Ishigaki, Takamasa

AU - Moriyoshi, Yusuke

AU - Watanabe, Takayuki

AU - Kanzawa, Atsushi

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