A composite's microstructure significantly influences its overall properties. Orientation and aspect ratio of the fiber are two key parameters that describe the microstructures of a composite with straight short fibers. This paper discusses the effects of fiber orientation and aspect ratio distribut
Effect of ratio of non-woven cloth to short-cut fiber web of the preform on the flexural properties of C/C composites
β Scribed by Tengfei Chen; Yang Wentang; Genshan Liu; Huang Baiyun
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 844 KB
- Volume
- 505
- Category
- Article
- ISSN
- 0921-5093
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β¦ Synopsis
The effect of mass ratio of non-woven cloth to short-cut fiber web of needle-punched felt on the flexural properties of C/C composites was investigated. Results show that the flexural strength and modulus increase when the ratio of non-woven cloth to short-cut fiber web change from 7:3 to 6:4, and then decrease when the ratio of non-woven cloth to short-cut fiber web change from 6:4 through 5:5 to full short-cut fiber web. It can be explained on the base of hybrid fiber composites theory. There exists "hybrid synergetic effect" in the C/C composites with needle-punched felt as preform, which results in higher strength of C/C composites only when an optimal mass ratio of non-woven cloth to short-cut fiber web was adopted.
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