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Abstract:
A model that includes effects of coatings, interfacial behavior, plastic deformation of matrix and reaction zone has been developed for analysis of the behavior of mmc reinforced by coated fibers. the stress concentration caused by the cracks in the reaction zone was calculated from the model and the results show that it can be relaxed by choosing coatings of low modulus and controlling interfacial strength to a relatively low value. the predictions of the model in composite strength are consistent with that from the griffith relationship with strong interfacial bonding and the experimental results for sic-coated c/al composites. both the theory and the experiment show that high strength of the composites can be maintained by sic coating even when there is a serious reaction at the coating/matrix interface. keywords:, analytical, cr mmc, data, mmc, mmc data, models, (c)f/a356, fibers, (c)f/al, a356 matrix, al matrix, c fibers, c/a356, c/al, coated fibers, coating effects, pan fibers, sic coatings, axial tensile strength, debonding, interfacial strength data, tensile strength, fiber pull out tests, plastic deformations, interfacial behaviors, reaction layers, rom.
| Description: |
Journal article |
| Pages: |
8 |
| Report Date: |
1993 |
| Report Number: |
D384402 |
Report Unavailable |
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