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Characterisation of thermo-mechanical properties of MgO–Al2O3–SiO2 glass ceramic with different heat treatment temperatures

In collaboration with Bristol and Alstom, this work found that crystallisation in high temperature glass ceramic materials was a function of the annealing temperature. Subsequently, the mechanical properties were significantly increased without any change in the composition of the material. Glass fibres produced at Bristol were crystallised into glass ceramic and used in polymer composites at Sheffield, resulting in much higher stiffness and damping coefficient compared to E-glass composites. The fibres are currently used to reinforce lightweight metallic alloys to achieve the properties required for the new generation aircraft (contact: Programme Manager - Materials & HV Technology, Alstom).