Microstructure characteristics of ultra-fine ZrO2-Y2O3 ceramic powdersstar, open

A.J.A. Winnubst, W.F.M. Groot Zevert, G.S.A.M. Theunissen, A.J. Burggraaf

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Abstract

Yttria-doped zirconia powders with an extremely small crystallite size (8 nm) and a narrow size distribution have been prepared by gel precipitation methods. Precipitation of an alkoxide solution in water (“alkoxide” synthesis) results in weaker agglomerates when compared with a precipitation of a metal chloride solution in ammonia (“chloride” synthesis). Both types of agglomerate are fractured during isostatic compaction. The “alkoxide” agglomerates consist of strong small aggregates (15–20 nm) while within the “chloride” agglomerates no, or only a few, aggregates are present
Original languageEnglish
Pages (from-to)215-219
JournalMaterials science & engineering
Volume109
DOIs
Publication statusPublished - 1989
EventE-MRS Spring Meeting 1988 - Strasbourg, France
Duration: 31 May 19882 Jun 1988

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