Fiber reinforced glass composites high temperature

D. F. Hasson and S. G. Fishman, Impact Behavior of Fiber Reinforced Glass Matrix Composites, in High Temperature High Performance Composites, Materials Research Society Symposium Proceedings, Vol. 120, eds. F. D. Lemkey, S. G. Fishman, A. G. Evans, and J. R. Strife, Materials Research Society, Pittsburgh, PA, 1988, pp. 285-290. 

Carbon fiber reinforced ceramic composites also find some important applications. Carbon is an excellent high temperature material when used in an inert or nonoxidizing atmosphere. In carbon fiber reinforced ceramics, the matrix may be carbon or some other glass or ceramic. Unlike other nonoxide ceramics, carbon powder is nonsinterable. Thus, the carbon matrix is generally obtained from pitch or phenolic resins. Heat treatment decomposes the pitch or phenolic to carbon. Many pores are formed during this conversion from a hydrocarbon to carbon. Thus, a dense and strong pore-free carbon/carbon composite is not easy to fabricate. 

Special considerations glass composites have very high LOI= 47% glass fiber reinforcement increases heat deflection temperature by more than 150°C to over 260°C at 40 wt% glass fiber... 

T. Mah, M. G. Mendiratta, A. P. Katz, R. Ruh and K. S. Mazdiyasni, High-Temperature Mechanical Behaviour of Fiber-Reinforced Glass-Ceramic-Matrix Composites, J. Am. Ceram. Soc. 68, C-248, C-251 (1985). 

Da-Peng Z and Hong F (2008), Mechanical and high-temperature properties of glass fibers reinforced phenolic composites , J Reinf Plast Compos, 27, 1449-1460. 

The increased interest in nanocomposites started with the development of layered silicate polyamide 6 (PA6) nanocomposites at Toyota [1, 2, 3]. The composites had high stiffness, increased heat distortion temperature and acceptable impact strength compared to polyamide (PA). They offered 25% weight saving and a better balance of properties than traditional glass fiber reinforced PA composites [3]. Since then numerous studies have been carried out on nanocomposites prepared from PA [1,2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,22,23], but also on composites with various polymers... 

Poly[2,2 -(m-phenylene-5,5 -benzimidazole)] (PBI) is a very high glass transition temperature (Tg 430°C), commercially available material. It possesses excellent mechanical properties, but is difficult to process into large parts and has high moisture regain and poor thermo-oxidative stability at temperatures above approximately 260 °C. Polyimides, especially the thermoplastic polyimides, offer attractive thermo-oxidative stability and processibility, but often lack the thermal and mechanical characteristics necessary to perform in applications such as the matrix for high use-temperature (over 300 °C) structural composites (for example, carbon fiber reinforced) for aerospace use. The attempt to mitigate... 

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