Kinetic analysis of Ti3SiC2 MAX phase
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ATASOY, Ahmet. Kinetic analysis of Ti3SiC2 MAX phase. In: Central and Eastern European Conference on Thermal Analysis and Calorimetry, Ed. 4, 28-31 august 2017, Chişinău. Germany: Academica Greifswald, 2017, Editia 4, p. 213. ISBN 978-3-940237-47-7.
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Central and Eastern European Conference on Thermal Analysis and Calorimetry
Editia 4, 2017
Conferința "Central and Eastern European Conference"
4, Chişinău, Moldova, 28-31 august 2017

Kinetic analysis of Ti3SiC2 MAX phase


Pag. 213-213

Atasoy Ahmet
 
Sakarya University
 
 
Disponibil în IBN: 27 septembrie 2019


Rezumat

There are growing interests on the MAX materials family at the last two decades because of the MAX phase materials combine metal and ceramic material properties. These materials are new generation materials which replaced with the advanced ceramics in the near future. The decomposition temperatures of the materials change between 850-2300°C, depending upon the type and number of impurities present. Among the MAX phase ceramics, Ti3SiC2 is one of the most attraction material which is half of the published papers were about it. It is usually processed from pure Ti, Si, SiC and TiC powders or combinations at high temperature. Because of expensive raw materials used, the cost of the products is so expensive. An alternative use of oxide source for Ti or Si and in-situ synthesis of the final phase such as Ti3SiC2 could be attraction method in the Max phase family. The kinetic analysis of Ti3SiC2 MAX phase formation were investigated by means of differential thermal analysis, X-ray diffraction (XRD), scanning electron microscopy (SEM). the kinetics parameters including the activation energy for the Ti3SiC2 phase and the Avrami parameter (n) were measured with Ozawa and Kissinger methods. The results were shown that the starting mixture of SiO2, TiO2, Al and C powders were underwent extensive reduction into metallic forms in a alumina-rich matrix, then the carburising and the formation of 312 phase were took place. It was determined that the formation kinetic of Ti3SiC2 occurred in two steps and both regions suitably fit a first order kinetic model.