Some important characteristics of Bikaner clay
01 Jan 1983-Transactions of The Indian Ceramic Society (Indian Ceramic Society)-Vol. 42, Iss: 2, pp 48-50
TL;DR: In this article, the authors described the characterization and rehydration of the clay from Bikaner district of Rajasthan and found that the clay contained predominantly montmorillonite with kaolinite and quartz as impurities.
Abstract: The paper embodies characterization and rehydration of the clay from Bikaner district of Rajasthan. DTA and XRD indicated that the clay contained predominantly montmorillonite with kaolinite and quartz as impurities. The behaviour of the clay on dehydroxylation was found similar to an ‘abnormal montmorillonite’. DTA and TGA study suggested that the clay regained lost water completely on rehydration after being heat-treated up to 400°c, but the rehydration was comparatively poor when the clay was heated at higher temperatures. Maximum water adsorption was noticed for the sample heat-treated at 200°C.
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01 Jan 1959
TL;DR: In this paper, the nature of clays and other ceramic materials is discussed, including a history of the development of ceramics and a discussion of important ceramic objects, atomic and crystalline structure of the silicates, the crystal structure of non-siliceous ceramic materials, the identification and estimation of minerals in ceramic materials and the chemical and mineralogical composition of raw ceramic materials.
Abstract: Subjects covered are: the nature of clays and other ceramic materials which includes a history of the development of ceramics and a discussion of important ceramic objects, atomic and crystalline structure, crystal structure of the silicates, the crystal structure of non-siliceous ceramic materials, the identification and estimation of minerals in ceramic materials, the chemical and mineralogical composition of ceramic raw materials, physical and structural properties of raw ceramic materials, the influence of water in ceramic systems, changes in the physical state of ceramic materials brought about by the removal of water, the equilibrium state and physico-chemical reactions, chemical and physical changes in ceramic materials, strength and allied properties, and miscellaneous properties of ceramic materials.
158 citations
TL;DR: In this article, it was shown that high-temperature phase, thermal, and dehydration characteristics of clays are related to the polarization of the various ions beyond the co-ordination system in which the substitution takes place.
Abstract: Variations in chemical bonding, as caused by isomorphism in the layer silicates, are related to polarization of the various ions beyond the co-ordination system in which the substitution takes place. Evidence to support predicted variations in physical properties of clays is derived from well-known high-temperature phase, thermal, and dehydration characteristics of clay minerals.
8 citations