Thesis / Dissertation

Near-net shaping of dense ceramics via freeze-casting

Samuel Jordan Pinches, George Franks (ed.)

Published : 2020

Abstract

At present, producing dense complex-shaped ceramic parts require time-consuming and labour intensive processes, that are unsuitable for large-scale mass production. This results in prohibitively expensive part costs, in turn limiting the range of practical applications for complex-shaped dense ceramic materials. With process modifications, the freeze-casting process has potential as a suitable near-net shaping process for this application. In freeze-casting, a well-dispersed suspension of particles, such as a dispersion of ceramic powder in a carrier solvent, is frozen in a mould to produce a solid part. The frozen solvent can then be removed by sublimation in a freeze dryer, to produce a ce..

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