Hollandite ceramics: effect of composition on melting temperature
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The American Ceramic Society
Abstract
Hollandite-bearing (30-60 wt%) ceramic melts incorporating varying amounts of Cs2O (1.96-7.5 wt%) have been prepared in air by melting. Minor phases included zirconolite, perovskite and rutile. Detailed analysis of the phase assemblage of the samples by electron microscopy is presented on materials in which Fe, Co, Cr, Ni or Mn is targeted towards the B-site of the titanate hollandites, and the Cs in the hollandite A-site. Mn, Ni and Co entered the hollandite as divalent species while Fe and Cr in the hollandite were trivalent. DTA measurements showed that the melting temperatures of the differently substituted hollandite-rich ceramic melts varied between 1315 and 1450°C. The effect on melt temperature and phase assemblage of substituting K for Ba in the hollandite structure of the melts was also examined. © The American Ceramic Society
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Physical copy held by ANSTO Library at DDC: 666.14/6
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Carter, M. L., Vance, E. R., Cassidy, D. J., Li, H. & Mitchell, D. R. G. (2005). Hollandite ceramics: effect of composition on melting temperature. Paper presented to the Proceedings of the 106th Annual Meeting of the American Ceramic Society, Indianapolis, Indiana, USA. April 18-21, 2004. In J. Vienna, C. Herman and S. Marra (Eds.), Environmental Issues and Waste Management Technologies in the Ceramic and Nuclear Industries X, (Vol. 168., pp, 207-216).