Correlation between thermal behavior of clays and their chemical and mineralogical composition: a review

Clay's abundance has been widely used as industrial raw materials, especially ceramic and tile industries. Utilization of these minerals needs a thermal process for producing ceramic products. Two studies conducted by Septawander et al. and Chin C et al., showed the relationship between thermal...

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Bibliographic Details
Published inIOP conference series. Earth and environmental science Vol. 118; no. 1; pp. 12078 - 12081
Main Authors Yanti, Evi Dwi, Pratiwi, I
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.02.2018
Subjects
Ceramics industry
Chemical composition
Clay
Clay minerals
Cristobalite
Heat treatment
Illite
Kaolinite
Mineralogy
Minerals
Montmorillonite
Mullite
Quartz
Raw materials
Room temperature
Thermal analysis
Thermodynamic properties
Tiles
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Summary:Clay's abundance has been widely used as industrial raw materials, especially ceramic and tile industries. Utilization of these minerals needs a thermal process for producing ceramic products. Two studies conducted by Septawander et al. and Chin C et al., showed the relationship between thermal behavior of clays and their chemical and mineralogical composition. Clays are characterized by XRD analysis and thermal analysis, ranging from 1100°C to 1200°C room temperature. Specimen of raw materials of clay which is used for the thermal treatment is taken from different geological conditions and formation. In raw material, Quartz is almost present in all samples. Halloysite, montmorillonite, and feldspar are present in Tanjung Morawa raw clay. KC and MC similar kaolinite and illite are present in the samples. The research illustrates the interrelationships of clay minerals and chemical composition with their heat behavior. As the temperature of combustion increases, the sample reduces a significant weight. The minerals which have undergone a transformation phase became mullite, cristobalite or illite and quartz. Under SEM analysis, the microstructures of the samples showed irregularity in shape; changes occurred due the increase of heat.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/118/1/012078