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Induction plasma reactive deposition of tungsten and titanium carbides

Book ·
OSTI ID:160485
; ;  [1];  [2]
  1. Univ. of Sherbrooke, Quebec (Canada)
  2. Cleveland State Univ., OH (United States)
A study is reported on the use of induction plasma technology for the preparation of dense free-standing deposits of tungsten carbide and titanium carbide from metallic powders and methane. Phases analysis by x-ray diffraction indicates that primary carburization of the particles takes place in-flight giving rise to the formation of W{sub 2}C and TiC{sub 1{minus}x}. Secondary carburization occurs in the deposits resulting in the formation of tungsten and titanium carbides. Microstructures revealed by optical and scanning electron microscopy show uniform small grains of the carbides. The reactive plasma spray-formed tungsten carbide shows transgranular fracture while pure tungsten deposits show intergranular fracture.
OSTI ID:
160485
Report Number(s):
CONF-940684--; ISBN 0-87170-509-5
Country of Publication:
United States
Language:
English