On whisker toughening in ceramic materials

Journal Article · Fri Nov 01 04:00:00 EST 1991 · Acta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-7151(91)90066-A· OSTI ID:5833184

Bengisu, M; Inal, O T; Tosyali, O ^[1]

---

1. New Mexico Institute of Mining and Technology, Socorro (USA)

Toughening achieved by incorporation of whiskers to ceramic matrices was calculated based on an approach that combines individual contributions from effective toughening mechanisms. The relative importance of each mechanism, among others, was found to substantially vary depending on the selection of whisker and composite parameters. Analysis of the effect of various parameters showed that whisker strength, pullout length, debond length, and volume fraction of whiskers are the most important parameters in whisker toughening. Very good agreement was found between predictions made by the combinatory approach and experimental toughness values of Al2O3/SiC(w) composites. 50 refs.

• OSTI ID: 5833184
• Journal Information: Acta Metallurgica et Materialia; (United States), Journal Name: Acta Metallurgica et Materialia; (United States) Vol. 39; ISSN 0956-7151; ISSN AMATE
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
360603 -- Materials-- Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CERAMICS
CHALCOGENIDES
COMPOSITE MATERIALS
CRACK PROPAGATION
CRYSTALS
FRACTURE PROPERTIES
MATERIALS
MECHANICAL PROPERTIES
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
REINFORCED MATERIALS
SHEAR PROPERTIES
SILICON CARBIDES
SILICON COMPOUNDS
WHISKERS