Fracture toughness of fiber-reinforced glass ceramic and ceramic matrix composites
Abstract
A fracture mechanics investigation of 2D woven Nicalon SiC/SiC and Nicalon SiC/LAS has been undertaken. An energy approach has been adopted to characterize and quantify the fracture properties of these materials. Chevron-notched bend specimens were tested in an edgewise configuration in which the crack propagated perpendicular to the ply direction. R-curves were obtained from repeated loading and unloading of specimens using several methods of data reduction. Values correconding to the plateau regions of the R-curves were taken as steady-state crack-growth resistance. These ranged from 37 to 63 kJ/sq m for 2D-SiC/LAS and 2.6 to 2.8 kJ/sq m for 2D-SiC/SiC composites. 6 refs.
- Authors:
- Publication Date:
- OSTI Identifier:
- 6115281
- Report Number(s):
- CONF-910162-
Journal ID: ISSN 0196-6219; CODEN: CESPD
- Resource Type:
- Conference
- Journal Name:
- Ceramic Engineering and Science Proceedings; (United States)
- Additional Journal Information:
- Journal Volume: 12; Conference: 15. annual conference on composites and advanced ceramics, Cocoa Beach, FL (United States), 13-16 Jan 1991; Journal ID: ISSN 0196-6219
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; COMPOSITE MATERIALS; FRACTURE PROPERTIES; SILICON CARBIDES; ALUMINIUM OXIDES; CARBON; CRACK PROPAGATION; ELASTICITY; FIBERS; FRACTURE MECHANICS; GLASS; LITHIUM COMPOUNDS; MATRIX MATERIALS; PLASTICITY; SILICON OXIDES; ALKALI METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CARBIDES; CARBON COMPOUNDS; CHALCOGENIDES; ELEMENTS; MATERIALS; MECHANICAL PROPERTIES; MECHANICS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; SILICON COMPOUNDS; TENSILE PROPERTIES; 360203* - Ceramics, Cermets, & Refractories- Mechanical Properties; 360603 - Materials- Properties
Citation Formats
Stull, K R, and Parvizi-majidi, A. Fracture toughness of fiber-reinforced glass ceramic and ceramic matrix composites. United States: N. p., 1991.
Web.
Stull, K R, & Parvizi-majidi, A. Fracture toughness of fiber-reinforced glass ceramic and ceramic matrix composites. United States.
Stull, K R, and Parvizi-majidi, A. 1991.
"Fracture toughness of fiber-reinforced glass ceramic and ceramic matrix composites". United States.
@article{osti_6115281,
title = {Fracture toughness of fiber-reinforced glass ceramic and ceramic matrix composites},
author = {Stull, K R and Parvizi-majidi, A},
abstractNote = {A fracture mechanics investigation of 2D woven Nicalon SiC/SiC and Nicalon SiC/LAS has been undertaken. An energy approach has been adopted to characterize and quantify the fracture properties of these materials. Chevron-notched bend specimens were tested in an edgewise configuration in which the crack propagated perpendicular to the ply direction. R-curves were obtained from repeated loading and unloading of specimens using several methods of data reduction. Values correconding to the plateau regions of the R-curves were taken as steady-state crack-growth resistance. These ranged from 37 to 63 kJ/sq m for 2D-SiC/LAS and 2.6 to 2.8 kJ/sq m for 2D-SiC/SiC composites. 6 refs.},
doi = {},
url = {https://www.osti.gov/biblio/6115281},
journal = {Ceramic Engineering and Science Proceedings; (United States)},
issn = {0196-6219},
number = ,
volume = 12,
place = {United States},
year = {Thu Aug 01 00:00:00 EDT 1991},
month = {Thu Aug 01 00:00:00 EDT 1991}
}
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