The Carbon Absorption of Tungsten Filament during Diamond Deposition Treatment in Hot-Filament Method

Hisashi Suzuki, Hideaki Matsubara, Noritoshi Horie

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The carbon absorption of tungsten filament in hot-filament method was mainly studied in relation to the amount of diamond deposition on WC-Co substrate. The newly used tungsten filament absorbed the carbon in the mixed gas of CH4 plus H2at the initial stage of deposition treatment, so that the incubation period for the deposition, which was varied according to the CH4 concentration in a mixed gas, appeared. It was suggested that pre-carburizing treatment of tungsten filament in a gas having higher CH4 content was effective in order to stably deposit the diamond. Diamond was deposited also by passing hydrogen gas only through the pre-carburized filament.

Original languageEnglish
Pages (from-to)281-285
Number of pages5
Journaljournal of the japan society of powder and powder metallurgy
Volume33
Issue number6
DOIs
Publication statusPublished - 1986 Jan 1
Externally publishedYes

ASJC Scopus subject areas

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

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