Method of producing nanophase WC/TiC/Co composite powder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 25, 2001
Grant Date -
N/A
app pub date -
May 31, 2000
filing date -
Jul 21, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a method of producing nanophase WC/TiC/Co composite powder by means of a mechano-chemical process comprising a combination of mechanical and chemical methods. For this purpose, the present invention provides a method of producing nanophase WC/TiC/Co composite powder, said method comprising as follows: a process of producing an initial powder by means of spray-drying from water-soluble salts containing W, Ti, and Co; a process of heating to remove the salts and moisture contained in the initial powder after spray-drying; a process of mechanically ball-milling to grind oxide powder after removing the salts and moisture therefrom, and to homogeneously mix the powder with an addition of carbon; and a process of heating the powder after milling, for reduction and carburization, in an atmosphere of reductive gas or non-oxidative gas.
First Claim
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