Sinha, Mithlesh Kumar and Guha, S K (1992) Mineralogical studies on 5 plastic fire clays - DTA, TG and electron-microscopy. Journal of Thermal Analysis, 38 (6). pp. 1405-1413. ISSN 1388-6150

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Mineralogical studies on five plastic fire clays of India have been carried out by DTA, TG and electron microscopy. Studies were done on both `as received' and `<1-mu fraction' of clays. Results indicated that all the clays were predominantly kaolinite in nature and showed the main endothermic peak between 540-degrees and 590-degrees-C and the exothermic peak between 920-degrees and 985-degrees-C. A large exothermic peak at 810-degrees-C and a weight loss of 5.35% between 700-degrees and 900-degrees-C in case of Barachatarma clay indicated the presence of graphitic carbon in the same. Both Neyveli and Badampahar clays contained illite and goethite. Electron micrographs of Mohuamilan and Neyveli clays showed hexagonal flakes of well-ordered kaolinite. Some tubular particles were seen in Chittorpur, Neyveli and Badampahar clays in addition to the kaolinite particles.

Item Type: Article
Subjects: Structural Clay Products
Depositing User: Bidhan Chaudhuri
Date Deposited: 29 Nov 2013 07:51
Last Modified: 28 Feb 2016 17:04

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