| Popis: |
Phosphate of chrome-alumina (PCA) matrix composites were successfully prepared via thermoforming by using chrome-aluminum phosphate as adhesive, ZnO as curing agent and single component or combination of Al2O3, SiO2, SiC and Si3N4as fillers. We have studied the effect of different fillers on the mechanical properties, dielectric properties and moisture absorption rate of composite materials. Results show that, for the PCA-III system, when curing temperature is 180°C, the dielectric properties of materials are the best and the moisture absorption rate is the minimum; When the amount of filler is 35%, the mechanical properties of PCA-III system are the best (i.e. the tensile strength is 94.4MPa and the flexural strength is 134.7MPa). |
