CYCLIC FATIGUE-CRACK GROWTH RESISTANCE OF AL2O3-AL2TIO5 COMPOSITES

Authors
BARTOLOME JF REQUENA J MOYA JS LI M GUIU F
Citation
Jf. Bartolome et al., CYCLIC FATIGUE-CRACK GROWTH RESISTANCE OF AL2O3-AL2TIO5 COMPOSITES, Acta materialia, 44(4), 1996, pp. 1361-1370
Citations number
42
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Journal title
Acta materialia → ACNP
ISSN journal
13596454
Volume
44
Issue
4
Year of publication
1996
Pages
1361 - 1370
Database
ISI
SICI code
1359-6454(1996)44:4<1361:CFGROA>2.0.ZU;2-P
Abstract
The role of the aluminium titanate and the grain size of alumina in th e flaw tolerance of Al2O3-Al2TiO5 composites has been studied. The fab rication of these in situ formed composites with different grain sizes of alumina with homogeneous and heterogeneous microstructure, is desc ribed. An investigation was carried out regarding whether a correlatio n exists between the cyclic fatigue crack growth behaviour in composit es with different distribution and quantity of aluminium titanate and different average grain size of the alumina matrix, and the magnitude of the bridging forces developed when the cracks propagate at similar rates.