Abstract
The vacuum thermocycling in the temperature interval of 93–413 K under vacuum of 10–5Pa was performed for unidirectional M40J/AG-80 composites, and changes in the bending strength and modulus, the mass loss ratios, the surface morphology and the internal structure transitions were examined. Experimental results show that with increasing the vacuum-thermal cycles, both the bending strength and modulus exhibit an increase trend followed by decreasing after 40 cycles and leveling off after 97 cycles. The mass loss ratio increases firstly and then tends to level off after 48 cycles. The vacuum thermocycling could cause the debonding in the interfacial layers between the AG-80 epoxy matrix and carbon fibers, as well as the post curing in the epoxy matrix. The changes in the bending strength and modulus, the mass loss ratio and the surface morphology of the M40J/AG-80 composites can be related to the debonding and the post curing due to the vacuum thermocycling.
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© 2006 Springer
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GAO, Y., YANG, D., HE, S., LI, Z. (2006). EFFECT OF VACUUM THERMOCYCLING ON PROPERTIES OF UNIDIRECTIONAL M40J/AG-80 COMPOSITES. In: Kleiman, J.I. (eds) PROTECTION OF MATERIALS AND STRUCTURES FROM THE SPACE ENVIRONMENT. Space Technology Proceedings, vol 6. Springer, Dordrecht . https://doi.org/10.1007/1-4020-4319-8_19
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DOI: https://doi.org/10.1007/1-4020-4319-8_19
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-4281-2
Online ISBN: 978-1-4020-4319-2
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