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Preparation of submicron titanium nitride powder by vapor-phase reactions.

Authors
Elger-GW; Traut-DE; Slavens-GJ; Gerdemann-SJ
Source
Metall Trans B 1989 Aug; 20(4):493-497
NIOSHTIC No.
10007323
Abstract
The U.S. Bureau of Mines continued research on the preparation of titanium nitride powder for potential use as a substitute for imported tungsten used in metal cutting tools and wear-resistant applications. Major emphasis was directed toward improving the purity of the powder produced by vapor-phase reaction of titanium tetrachloride with magnesium in the presence of nitrogen or anhydrous ammonia at 1,000 deg c. Modifications were made in powder collection, handling, and purification procedures that significantly reduced the oxygen content of the product from >5 wt pct to <1 wt pct. Powder samples contained oxygen contents as low as 0.23 Wt pct and exhibited a median particle size of 0.28 Um.
Keywords
Metallic-compounds; Metal-compounds; Tungsten-compounds; Magnesium-compounds; Chemical-reactions
CODEN
MTTBCR
CAS No.
7440-33-7; 7550-45-0; 7439-95-4; 7727-37-9
Publication Date
19890801
Document Type
OP; Journal Article
Fiscal Year
1989
NTIS Accession No.
NTIS Price
Identifying No.
OP 173-89
Issue of Publication
4
ISSN
0360-2141
NIOSH Division
ALRC
Source Name
Metallurgical Transactions. B. Process Metallurgy
State
OR
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