Off-axis creep behavior of oxide/oxide Nextel720/AS-0
Oxide/oxide ceramic-matrix composites (CMC) are being demonstrated in engine components that are axisymmetric in shape, and subject to axisymmetric thermo-mechanical loadings. Traditionally, woven CMC materials used in these components are made from 0 deg /90 deg fiber architectures. In many cases,...
Saved in:
| Published in: | Composites science and technology Vol. 68; no. 6; pp. 1313 - 1320 |
|---|---|
| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
01-05-2008
|
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Oxide/oxide ceramic-matrix composites (CMC) are being demonstrated in engine components that are axisymmetric in shape, and subject to axisymmetric thermo-mechanical loadings. Traditionally, woven CMC materials used in these components are made from 0 deg /90 deg fiber architectures. In many cases, the highest stresses are not always coincident with the orientation of the reinforcing fibers. Tensile and creeps tests at 1100 deg C on a +/-45 deg CMC composed of NextelTM720 fibers and a alumina-silica matrix (AS-0) have been performed. The +/-45 deg orientation has approximately two-thirds the ultimate tensile strength of the 0 deg /90 deg orientation. The creep rupture strength at 100h for the +/-45 deg orientation is approximately one-third that of the 0 deg /90 deg orientation. |
|---|---|
| Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0266-3538 |
| DOI: | 10.1016/j.compscitech.2007.12.013 |