PHOSPHATE GLASS-CERAMIC TITANIUM COMPOSITE-MATERIALS

Phosphate glass-ceramic-titanium particulate composites have been prepared by hot-pressing and their thermal, elastic and mechanical properties have been measured. Results have been then explained using various theoretical models for thermal properties, elasticity and fracture mechanics of particulate composites. It is shown that the thermal and elastic mismatches between glass-ceramic matrix and titanium could produce a microcracking of materials. This microcracking could explain both fracture characteristics and discrepancies between theoretical and experimental values of elastic moduli.