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Optimized preparation parameters of unidirectionally C fibre-reinforced glass ceramics of the systems MAS and BMAS

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Abstract

For reinforcement with high strength C fibres, the optimized preparation parameters of two glass ceramics in the system MgO-Al2O3-SiO2 (MAS) and BaO-MgO-Al2O3SiO2 (BMAS) were investigated. The optimized preparation is related mainly to the mechanical properties of composites having a high portion of crystalline matrix microstructure. As a first step, the temperature ranges were determined at which the glass matrix crystallizes to a high degree. The optimized mechanical properties of the composites were obtained by systematic variation of the temperature-pressure profile for the densification of the prepregs. The best results were obtained by densifying the composition of each composite in the glass temperature region, T g, before the matrix started to crystallize. Optima mechanical properties exist also for composite fibre concentrations observed in the range of 31–33 vol%.

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Authors and Affiliations

  1. Institut für Nichtmetallische Werkstoffe, TU Berlin, Englische Str. 20, 10587, Berlin, Germany

    S. Reinsch, C. Reich & R. Brückner

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  1. S. Reinsch
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  2. C. Reich
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  3. R. Brückner
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Reinsch, S., Reich, C. & Brückner, R. Optimized preparation parameters of unidirectionally C fibre-reinforced glass ceramics of the systems MAS and BMAS. JOURNAL OF MATERIALS SCIENCE 30, 5632–5638 (1995). https://doi.org/10.1007/BF00356696

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  • DOI: https://doi.org/10.1007/BF00356696

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