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SOME THERMAL CHARACTERISTICS OF CLAYS 1
Author(s) -
Macgee A. Eenesi
Publication year - 1927
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1927.tb16426.x
Subject(s) - exothermic reaction , endothermic process , thermal , mineralogy , thermodynamics , materials science , chemistry , chemical engineering , organic chemistry , adsorption , physics , engineering
The literature pertaining to thermal reactions, specific heats, and thermal conductivities of clays is reviewed and discussed, particular attention being given to the heat required to fire various clays. All clays undergo an endothermic reaction between 100°C and 650°C amounting to from 30 to 150 calories per gram. An exothermic reaction takes place at about 950°C which evolves from 10 to 40 calories per gram. The specific heats of clays and shales are about. 45 over the interval 20°C to 1100°C.