Fabrication of Mullite-Alumina-SiC Composites by In-Situ Reaction during Carbothermal Reduction of Inorganic Materials

Mullite and alumina are common in high-temperature applications because of their low thermal expansion coefficient and good thermal shock resistance. Evolution of SiC in the matrix and using it as reinforcing phase can improve thermo-mechanical properties of these materials. Also, in-situ formation...

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Main Authors:	P. Seifollahzadeh, M. Kalantar, A. Mashreghi, S.S. Ghasemi
Format:	Article
Language:	fas
Published:	Isfahan University of Technology 2015-12-01
Series:	Journal of Advanced Materials in Engineering
Subjects:	Carbothermal Reduction Andalusite Kaolinite Alumina Mullite SiC
Online Access:	http://jame.iut.ac.ir/browse.php?a_code=A-10-1-670&slc_lang=en&sid=1

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spelling	doaj-2e6051484a9e4f46b3bc84a333d264f42021-02-02T04:02:45ZfasIsfahan University of TechnologyJournal of Advanced Materials in Engineering1025-28512423-57332015-12-01343111Fabrication of Mullite-Alumina-SiC Composites by In-Situ Reaction during Carbothermal Reduction of Inorganic MaterialsP. Seifollahzadeh0M. Kalantar1A. Mashreghi2S.S. Ghasemi3 Department of Materials Science and Engineering, Faculty of Mining and Materials Engineering, Department of Materials Science and Engineering, Faculty of Mining and Materials Engineering, Department of Materials Science and Engineering, Faculty of Mining and Materials Engineering, Department of Materials Science and Engineering, Faculty of Mining and Materials Engineering, Mullite and alumina are common in high-temperature applications because of their low thermal expansion coefficient and good thermal shock resistance. Evolution of SiC in the matrix and using it as reinforcing phase can improve thermo-mechanical properties of these materials. Also, in-situ formation of the reinforcing phases by using inorganic materials is an economical process. In this work, crystallization of SiC as reinforcing phase in the matrix of mullite-alumina by carbothermal reaction processes of inorganic materials (andalusite and kaolinite) was studied. According to the ratio of C/SiO2 and process conditions, some properties of the composite such as phase transformation, microstructure and physical and mechanical properties were investigated. The results showed that optimal ratio of C/SiO2 and firing temperature of densification to form SiC crystals were 3.5 and 1600°C for andalusite and 5.5 and 1500°C for kaolinite.http://jame.iut.ac.ir/browse.php?a_code=A-10-1-670&slc_lang=en&sid=1Carbothermal Reduction Andalusite Kaolinite Alumina Mullite SiC
collection	DOAJ
language	fas
format	Article
sources	DOAJ
author	P. Seifollahzadeh M. Kalantar A. Mashreghi S.S. Ghasemi
spellingShingle	P. Seifollahzadeh M. Kalantar A. Mashreghi S.S. Ghasemi Fabrication of Mullite-Alumina-SiC Composites by In-Situ Reaction during Carbothermal Reduction of Inorganic Materials Journal of Advanced Materials in Engineering Carbothermal Reduction Andalusite Kaolinite Alumina Mullite SiC
author_facet	P. Seifollahzadeh M. Kalantar A. Mashreghi S.S. Ghasemi
author_sort	P. Seifollahzadeh
title	Fabrication of Mullite-Alumina-SiC Composites by In-Situ Reaction during Carbothermal Reduction of Inorganic Materials
title_short	Fabrication of Mullite-Alumina-SiC Composites by In-Situ Reaction during Carbothermal Reduction of Inorganic Materials
title_full	Fabrication of Mullite-Alumina-SiC Composites by In-Situ Reaction during Carbothermal Reduction of Inorganic Materials
title_fullStr	Fabrication of Mullite-Alumina-SiC Composites by In-Situ Reaction during Carbothermal Reduction of Inorganic Materials
title_full_unstemmed	Fabrication of Mullite-Alumina-SiC Composites by In-Situ Reaction during Carbothermal Reduction of Inorganic Materials
title_sort	fabrication of mullite-alumina-sic composites by in-situ reaction during carbothermal reduction of inorganic materials
publisher	Isfahan University of Technology
series	Journal of Advanced Materials in Engineering
issn	1025-2851 2423-5733
publishDate	2015-12-01
description	Mullite and alumina are common in high-temperature applications because of their low thermal expansion coefficient and good thermal shock resistance. Evolution of SiC in the matrix and using it as reinforcing phase can improve thermo-mechanical properties of these materials. Also, in-situ formation of the reinforcing phases by using inorganic materials is an economical process. In this work, crystallization of SiC as reinforcing phase in the matrix of mullite-alumina by carbothermal reaction processes of inorganic materials (andalusite and kaolinite) was studied. According to the ratio of C/SiO2 and process conditions, some properties of the composite such as phase transformation, microstructure and physical and mechanical properties were investigated. The results showed that optimal ratio of C/SiO2 and firing temperature of densification to form SiC crystals were 3.5 and 1600°C for andalusite and 5.5 and 1500°C for kaolinite.
topic	Carbothermal Reduction Andalusite Kaolinite Alumina Mullite SiC
url	http://jame.iut.ac.ir/browse.php?a_code=A-10-1-670&slc_lang=en&sid=1
work_keys_str_mv	AT pseifollahzadeh fabricationofmullitealuminasiccompositesbyinsitureactionduringcarbothermalreductionofinorganicmaterials AT mkalantar fabricationofmullitealuminasiccompositesbyinsitureactionduringcarbothermalreductionofinorganicmaterials AT amashreghi fabricationofmullitealuminasiccompositesbyinsitureactionduringcarbothermalreductionofinorganicmaterials AT ssghasemi fabricationofmullitealuminasiccompositesbyinsitureactionduringcarbothermalreductionofinorganicmaterials
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Fabrication of Mullite-Alumina-SiC Composites by In-Situ Reaction during Carbothermal Reduction of Inorganic Materials

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