1994

This review reports about the most used glass matrices (2) and reinforcements (3) for the preparation of glass- and glass-ceramic composites, their preparation methods (4), their properties (5) and the foreseen applications (6) in the field of transports, aerospace and biomedical. In particular, the thermal and mechanical properties of glass- and glass-ceramic matrix composites are compared with those of the most common metals and ceramics. Finally, some comments are reported about the probable development of the research in this field of great technological importance (7).

The influence of isothermal treatment at 400°C on the microstructure of a magnesium alloy/graphite composite was studied. The composite was characterized by Auger electron spectroscopy, scanning electron microscopy, energy dispersive X-ray analysis and X-ray diffraction. Due to thermal treatment, the reaction zone containing carbides grows.

Titanium particle-reinforced glass ceramic matrix composites were prepared by sintering under an Ar atmosphere titanium particles (Tip) and the glass powders 45ZnO-15PbO-40B2O3 (mol%) (ZPB) for the ZPBT composites and 48.8SiO2-48.8CaO-2.4B2O3 (SCB) for the SCBT composites. Each composite was characterized by scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction and differential thermal analysis. In order to modify the interfacial strength of the composites, glass matrices with different amounts of TiO2 (TZPB and TSCB, 7 and 2.1 mol% TiO2, respectively) were prepared.