SmP11O: Synthesis of electronic ceramics by using CO₂ laser

Abstract

A new method is discussed for synthesis of Pb(Zr, Ti)0₃ ceramics using C0₂ laser irradiation. There are two kinds of the system. One is a compact of mixed powder of PbTiO₃ and Bi₂(ZrO₃)₃ and the other is a compact of Pb304, Zr0₂ and Ti0₂ powders as the starting materials. The green pellets of oxides are irradiated by CO₂ laser at the power of 143, 286 and 143, 286 and 1430 W/cm² in a flow rate of 350 cc/min. of 20% O₂/Ar (10⁵ Pa). The latter system is better for synthesis of Pb(Zr, Ti)O₃ than the former one with the lower power. The former system, however, can work to take Zr into PbTiO₃ matrix as well. The CO₂ laser treatment will be efficient for the sintering and introducing certain elements into a matrix.