Abstract
Densification process, microstructure and mechanical strength of the feldspathic porcelain bodies were investigated as a function of alumina addition A maximum flexural strength of 150MPa was obtained by addition of 50mass% of alumina and by subsequent firing at 1350°C. Packing ratio and flexural strength showed a linear correlation and its gradient (k-value), which indicates a degree of the effect for the reinforcement during densification, increased linearly with increasing amount of alumina. Particles of alumina added to the bodies retained the original shape and size after firing. It is considered that dispersion of alumina articles inproved the reinforcement of the bodies.
