Autocatalytic effect and microstructural development during ageing of 3 mol% Y2O3-TZP

Hong Yang Lu*, Hong Y. Lin, San-Yuan Chen

*Corresponding author for this work

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

The ageing kinetics of a 3 mol% Y-TZP are different at temperatures of 120-400°C in air and in ∼0·1 MPa water-vapour atmosphere. In air, a sigmoidal curve is observed while in water, a characteristic exponential curve is obtained. A new phase with d = 0·3027-0·2979 nm appeared after ageing in air and in a water-vapour atmosphere. An indication of the formation of a superlattice was observed by selected area diffraction pattern (SADP); it is suggested that the orthorhombic phase is responsible for the additional reflections.

Original languageEnglish
Pages (from-to)207-214
Number of pages8
JournalCeramics International
Volume13
Issue number4
DOIs
StatePublished - 1 Jan 1987

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