High Temperature Oxidation Behavior of Ti3SiC2 in Air

J.H. Ko; Sung Sic Hwang; Sang Whan Park; Dong Bok Lee

doi:10.4028/www.scientific.net/MSF.486-487.97

Paper Titles

Preparation and Characterization of the Visible Light Responsive TiO₂ Thin Film Photocatalysts Prepared by Magnetron Sputtering Method and Their Photocatalytic Activities for the Water Splitting Reactions
p.81

Sol-Gel Synthesis and Photocatalitic Properties of Bi₂MNbO₇ (M = Al, Fe, In y Sm)
p.85

Influence of Spraying Power and Distance on Porosity and Microhardness of Plasma Sprayed TiO₂ Coatings
p.89

Preparation of Nano-Sized TiO₂ Photocatalysts by a Multi-Gelation Method and Their Application to the Degradation of 2-Propanol Diluted in Water
p.93

High Temperature Oxidation Behavior of Ti₃SiC₂ in Air
p.97

Fabrication of Zirconia-Hydroxyapatite Composites for Biological Materials
p.101

Thermal and Leaching Behaviors of EAF Dust-Clay Systems
p.105

Increased High Temperature Oxidation Resistance of Ni20Cr20Fe5Nb1Y₂O₃ Alloy with Nano-Sized Grains
p.109

Changes in Mechanical Properties of the Wide-Gap Region Brazed with Various Brazing Temperatures and Times
p.113

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High Temperature Oxidation Behavior of Ti₃SiC₂ in Air

Abstract:

Fine-grained and coarse-grained Ti3SiC2 materials were synthesized by hot pressing using TiC0.67 and Si powders as starting materials. The oxidation between 900 and 1100oC in air resulted in the formation of an outer TiO2 (rutile) layer and an inner mixed layer of TiO2 and amorphous SiO2, accompanying the liberation of carbon into the air. Fine-grained Ti3SiC2 displayed better oxidation resistance than coarse-grained one, with activation energies of 376.5~380 kJ/mol for oxidation.