CRACKING BEHAVIOR OF AL2O3 SHORT FIBRE AL-5.5ZN COMPOSITE IN TEM/

Authors
ZHANG XY TAN TX PENG WY GAO Q
Citation
Xy. Zhang et al., CRACKING BEHAVIOR OF AL2O3 SHORT FIBRE AL-5.5ZN COMPOSITE IN TEM/, JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 13(3), 1997, pp. 235-237
Citations number
7
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Journal title
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY → ACNP
ISSN journal
10050302
Volume
13
Issue
3
Year of publication
1997
Pages
235 - 237
Database
ISI
SICI code
1005-0302(1997)13:3<235:CBOASF>2.0.ZU;2-B
Abstract
The micromechanical behaviour of Al2O3 short fibre reinforced Al-5.5Zn matrix composite has been in-situ studied by using TEM. The results s how that in the composite the nucleation and propagation of cracks tak e place mainly in the matrix, as well as in the region near the fibre/ matrix interface. it has been also observed that the microcracks can c lose during unloading. So the fracture property can be characterized b y crack open displacement (GOD). The cracking characteristic may resul t from the large strength difference between the matrix and fibre.