سال انتشار: ۱۳۹۱

محل انتشار: اولین کنفرانس بین المللی مواد پیشرفته

تعداد صفحات: ۶

نویسنده(ها):

S Rahpeyma – M.Sc student, Department of Material Engineering, Islamic Azad University-Najafabad Branch, Isfahan, Iran
R. Ebrahimi-Kahrizsangi – Associate Professor, Department of Material Engineering, Islamic Azad University-Najafabad Branch, Isfahan, Iran

چکیده:

In this research, the kinetics of Fluorapatite synthesis via mechanochemical route in non-isothermal conditions was studied. The reaction kinetics was investigated by means of simultaneous thermal analysis(STA) instrument. The experiments were carried out under non-isothermal condition in argon atmosphere with linear heating rates of 15, 10 and 7 ◦C/min. The Coats-Redfern approximation was used to determine the mechanism of reaction and Kinetics parameters. The results showed that the reactions are chemically controlled with mechanism of E= 16 KJmol-1.