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Simultaneous Synthesis and Densification of Titanium Oxycarbide, Ti(C,O), through Gas–Solid Combustion
Author(s) -
Hashishin Takeshi,
Yamamoto Takeshi,
Ohyanagi Manshi,
Munir Zuhair A.
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.tb03611.x
Subject(s) - combustion , materials science , carbon dioxide , titanium dioxide , titanium , titanium carbide , chemical engineering , vickers hardness test , syngas , carbon fibers , indentation hardness , relative density , metallurgy , composite material , chemistry , microstructure , composite number , organic chemistry , catalysis , engineering
The synthesis of titanium oxycarbide through a solid–gas combustion was investigated. Titanium powders containing TiC additive at levels ranging from 0 to 50 wt% were combusted in an atmosphere of carbon dioxide gas, at pressures ranging from 0.1 to 5.0 MPa. The characteristics of the synthesis process and the properties of the resulting product were found to depend on the level of the TiC additive and on the pressure of the carbon dioxide gas. Dense oxycarbides (∼96% relative density) with Vickers microhardness of ∼18 GPa were synthesized. In addition, the process presents a possible method for the fixation of carbon dioxide gas for the synthesis of useful materials.