Thermal and particle size effects in magnesium oxide

Natarajan, M. ; Sarma, T. S. ; Ahluwalia, J. C. ; Rao, C. N. R. (1969) Thermal and particle size effects in magnesium oxide Transactions of the Faraday Society, 65 . pp. 3088-3092. ISSN 0014-7672

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X-ray line widths, surface areas and heats of solution of MgO samples prepared by vacuum dehydration of Mg(OH)2 at different temperatures in the range 350-1200°C have been studied. While the surface energy of particles shows a steady decrease with the temperature of preparation, the heats of solution shows an abrupt decrease over a narrow temperature range. The results have been interpreted in terms of pseudocrystallization of the highly disordered oxide followed by sintering; the pseudocrystallization of colloidal oxides appear to be similar to glass transitions.

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Deposited On:22 Jun 2011 12:00
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