Erosive Wear Behaviour in Duophase SiAlON Composites

Dean-Mo LIu*, Jiang Tsair Lin, Ray R.R. Lee

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Scopus citations


This communication describes the erosive wear behaviour of sialon ceramics composed of different ratios of α- and β-phase in terms of material properties such as hardness and fracture toughness by means of a sand blasting method with SiC abrasive particles. Experimental results show that the erosion rate (Δν) of the α/β sialon composites decreases with increasing hardness (H) and fracture toughness (Kc) and can be expressed by Δν = 6.53 H-1.51 K-3.33c. A correlation factor of 0.98 between the measured and the predicted values has been obtained, indicating that the erosion rate of the composites is predictable with high accuracy if the hardness and fracture toughness of the composite were determined.

Original languageEnglish
Pages (from-to)217-221
Number of pages5
JournalCeramics International
Issue number3
StatePublished - 1 Jan 1998

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