Experimental study of the fracture toughness of a ceramic/ceramic-matrix composite sandwich structure
Creators
- 1. Univ. of Washington, Seattle, WA (United States). Dept. of Mechanical Engineering
- 2. Univ. of Colorado, Boulder, CO (United States)
- 3. Tohoku Univ., Sendai (Japan)
Description
A hybrid experimental-numerical approach has been used to measure the fracture resistance of a sandwich structure consisting of a 304 stainless steel/partially stabilized zirconia ceramic-matrix composite crack-arresting layer embedded in a partially stabilized zirconia ceramic specimen. The mode 1 fracture toughness increases significantly when the crack propagates from the ceramic into the ceramic-matrix composite region. The increased toughening due to the stainless steel particles is explained reasonably well by a toughening model based on processing-induced thermal residual stresses. In addition, several experimental modifications were made to the chevron-notch wedge-loaded double cantilever beam specimen to overcome numerous problems encountered in generating a precrack in the small, brittle specimens used in this study
Additional details
Publishing Information
- Journal Title
- Journal of the American Ceramic Society
- Journal Volume
- 78
- Journal Issue
- 6
- Journal Page Range
- p. 1633-1639.
- ISSN
- 0002-7820
- CODEN
- JACTAW
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 26072957
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- COMPOSITE MATERIALS; CRACK PROPAGATION; FRACTURE MECHANICS; FRACTURE PROPERTIES; INTERFACES; INTERFEROMETRY; NOTCHES; RESIDUAL STRESSES; SAMPLE PREPARATION; STAINLESS STEEL-304; YTTRIUM OXIDES; ZIRCONIUM OXIDES
- Descriptors DEC
- ALLOYS; AUSTENITIC STEELS; CARBON ADDITIONS; CHALCOGENIDES; CHROMIUM ALLOYS; CHROMIUM-NICKEL STEELS; CORROSION RESISTANT ALLOYS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; MATERIALS; MECHANICAL PROPERTIES; MECHANICS; NICKEL ALLOYS; OXIDES; OXYGEN COMPOUNDS; STAINLESS STEELS; STEEL-CR19NI10; STEELS; STRESSES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; ZIRCONIUM COMPOUNDS