Ceramic nano composites for thermal insulators

In this research, nano pore composite had an effect on enhancing thermal property and mechanical property. The nano pore composite maintained the pore structure and enhanced mechanical property. Al₂O₃ xerogel was collapsed after heat treatment over 1000&2103; and they had weak mechanical strength because of pores. For maintenance of pore at high temperature and improvement of mechanical strength, Al₂O₃ whisker was hybridized. The Al₂O₃ whiskers in nano pore composite play the role of pillar during heat treatment. The mechanical property of Al₂O₃ xerogel was improved through complexation with Al₂O₃ whisker. The elastic modulus of nano pore composite increased 225 % from Al₂O₃ xerogel.