Process for making transition metal nitride whiskers

Details Process for making transition metal nitride whiskers Process for making transition metal nitride whiskers

1988-04-12

1989-11-28

Doll, John

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156DIG75, 156DIG87, 156DIG99, 423409, 423411, C01B 2106, C01B 21076, C30B 110

Patent

active

048835595

ABSTRACT:
A process for making metal nitrides, particularly titanium nitride whiskers, using a cyanide salt as a reducing agent for a metal compound in the presence of an alkali metal oxide. Sodium cyanide, various titanates and titanium oxide mixed with sodium oxide react to provide titanium nitride whiskers that can be used as reinforcement to ceramic composites.

REFERENCES:
patent: 1391147 (1921-09-01), von Bichowsky et al.
patent: 1391148 (1921-09-01), von Bichowsky et al.
Chemical Abstracts Citation 107:108159a.
Bamberger et al, "Reaction of Titanium Dioxide with Sodium Cyanide at 1000.degree. C.," Reactivity of Solids, 3 (1987) 165-170.
Kato et al, "Crystal Growth of Titanium Nitride by Chemical Vapor Deposition," Journal of Crystal Growth 29 (1975) 55.60.
Sugiyama et al, "Behaviour of Gold Metal as an Impurity for The Chemical Vapour Deposition of Titanium Nitride Whiskers on Quartz Glass," Chemistry Letters, pp. 363-366, 1975.
Bojarski et al, "Growth and Morphology of Titanium Nitride Whiskers," Journal of Crystal Growth 52 (1981) 290-295.
Pilyankevich et al, "Morphology of Titanium Nitride Single Crystals Produced from the Gaseous Phase," Institute of Materials Science, Academy of Sciences, pp. 35-39, Oct., 1977.

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