Influence of solids loading on the green microstructure and sintering behaviour of ceramic injection mouldings

Dean-Mo LIu*, Wenjea J. Tseng

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

The influence of solid loading of ceramic injection mouldings containing 45-60 vol % submicrometre zirconia powders on the green microstructure and sintering behaviour was investigated. The mouldings with lower solids content exhibit a coarser green microstructure, which, in turn, shows lower sintering activity. The sintering activity is largely improved by increasing the solids loading to 60% at which a sintered density of 99% theoretical can easily be attained at 1400 °C, which is primarily because of the evolution of a finer green microstructure. The green microstructure of the mouldings, along with the sintering behaviour, was found to be well correlated with the average pore diameter, rather than the most-frequent pore diameter in the pore-size frequency distribution of the green compacts. The moulded compacts, although containing considerable amount of agglomerates, show isotropic shrinkage behaviour.

Original languageEnglish
Pages (from-to)6475-6481
Number of pages7
JournalJournal of Materials Science
Volume32
Issue number24
DOIs
StatePublished - 1 Jan 1997

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