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Spark Plasma Sintering of Nano‐Sized TiN Prepared from TiO 2 by Controlled Hydrolysis of TiCl 4 and Ti(O‐i‐C 3 H 7 ) 4 Solution
Author(s) -
Kawano Shuichi,
Takahashi Junichi,
Shimada Shiro
Publication year - 2003
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2003.tb03524.x
Subject(s) - tin , spark plasma sintering , materials science , microstructure , ceramic , vickers hardness test , sintering , metallurgy , nitriding , nano , chemical engineering , analytical chemistry (journal) , composite material , chemistry , layer (electronics) , engineering , chromatography
Nano‐sized TiO 2 powders were prepared by controlled hydrolysis of TiCl 4 and Ti(O‐i‐C 3 H 7 ) 4 solutions and nitrided in flowing NH 3 gas at 700°–1000°C to form TiN. Nano‐sized TiN was densified by spark plasma sintering at 1300°–1600°C to produce TiN ceramics with a relative density of 98% at 1600°C. The microstructure of the etched ceramic surface was observed by SEM, which revealed the formation of uniformly sized 1–2 μm grains in the TiCl 4 ‐derived product and 10–20 μm in the Ti(O‐i‐C 3 H 7 ) 4 ‐derived TiN. The electric resisitivity and Vickers micro‐hardness of the TiN ceramics was also measured.