Study of oxidation behavior of titanium carbide powders coated with alumina using simultaneous thermal analysis

Document Type : Research Article

Authors
davod ghahremani
touraj ebadzadeh
amir maghsoudipour
Materials & Energy Research Center, Alborz
/amnc.2012.2.7.6
Abstract
In this work, a simultaneous thermal analyzer (STA) was carried out to examine the oxidation resistance of Tic powders without and with an alumina coating up to 1300°C. In order to study the effect of coating layer thickness on the oxidation resistance, cycling coating process was employed. SEM observations revealed the increment of alumina coating thickness with increase of the number of coating cycles and subsequently, the oxidation resistance of Tic particles. Furthermore, STA results showed the improvement of oxidation resistance of titanium carbide powders after two coating cycles in comparison with one coating cycle.
Keywords
Tic powder
Alumina coating
Oxidation resistance
Simultaneous thermal analysis