Kinetics of mullite formation from kaolinite and boehmite

Heraiz, M and Sahnoune, F and Hrairi, Meftah and Saheb, Nouari and Ouali, A (2016) Kinetics of mullite formation from kaolinite and boehmite. Molecular Crystals and Liquid Crystals, 628 (1). pp. 55-64. ISSN 1542-1406 E-ISSN 1563-5287

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Abstract

The excellent electrical, thermal and mechanical properties, and good stability of mullite made it a candidate material to produce ceramics for advanced applications such as catalyst supports, filters, optical devices, heat exchangers and electronic packaging. In this work, monolithic mullite was synthesized from kaolinite and boehmite and the kinetics of its formation was investigated using dilamometry. The activation energies for the transformation of kaolinite to metakaolinite, transformation of metakaolinite to spinel, and transformation of the kaolinite-boehmite powder to mullite were evaluated through non-isothermal treatment following the Kissinger and Ozawa equations. The growth morphology parameters were evaluated for the transformation of metakaolinite to spinel, and for the transformation of the spinel to mullite.

Item Type:	Article (Journal)
Additional Information:	4980/50904. Special Issue: 13th International Conference on Frontiers of Polymers and Advanced Materials (ICFPAM 2015)
Uncontrolled Keywords:	ctivation energy; Avrami parameter; Boehmite; Dilamometry; Kaolinite; Mullite
Subjects:	Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Dr. Meftah Hrairi
Date Deposited:	23 Jun 2016 13:57
Last Modified:	05 Jan 2017 11:51
URI:	http://irep.iium.edu.my/id/eprint/50904

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