Cyclic fatigue crack growth resistance of Al{sub 2}O{sub 3}-Al{sub 2}TiO{sub 5} composites

Journal Article · Sun Mar 31 23:00:00 EST 1996 · Acta Materialia

DOI:https://doi.org/10.1016/1359-6454(95)00291-X· OSTI ID:230781

Bartolome, J F; Requena, J; Moya, J S ^[1]; Li, M; Guiu, F ^[2]

---

1. CSIC, Madrid (Spain). Inst. de Ceramica y Vidrio
2. Univ. of London (United Kingdom). Queen Mary and Westfield Coll.

The role of the aluminum titanate and the grain size of alumina in the flaw tolerance of Al{sub 2}O{sub 3}-Al{sub 2}TiO{sub 5} composites has been studied. The fabrication of these in situ formed composites with different grain sizes of alumina with homogeneous and heterogeneous microstructure, is described. An investigation was carried out regarding whether a correlation exists between the cyclic fatigue crack growth behavior in composites with different distribution and quantity of aluminum 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.

• OSTI ID: 230781
• Journal Information: Acta Materialia, Journal Name: Acta Materialia Journal Issue: 4 Vol. 44; ISSN XZ504Y; ISSN 1359-6454
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
CHEMICAL REACTIONS
COMPOSITE MATERIALS
CORRELATIONS
CRACKS
FABRICATION
FATIGUE
FRACTURE PROPERTIES
GRAIN SIZE
IN-SITU PROCESSING
MICROSTRUCTURE
POWDERS
SINTERING
STRESSES
TITANIUM OXIDES