采用溶胶-凝胶方法在Pb-Ti-B-Si-O凝胶玻璃体系中，析出了PbTiO3微晶. DTA和X-ray衍射分析表明，随玻璃含量的增加，析晶温度升高. 热释电测试结果说明，随着玻璃含量的增加，热释电系数增大；随烧结温度的升高，PbTiO3微晶玻璃陶瓷的热释电系数也随之增大. 介电温谱的测量则显示，PbTiO3陶瓷与PbTiO3微晶玻璃陶瓷具有明显的差异.
PbTiO3-SiO2-B2O3 glass-ceramics were prepared by the sol-gel process. DTA and X-ray diffraction analysis show that the crystallization temperature of PbTiO3 glass-ceramics is higher than that of PbTiO3 ceramics. As the glass content increasing, their pyroelectric coefficients are increased, and the pyroelectric coefficients are increased with the increase of sintering temperatures. The temperature dependence of the dielectric constant of PbTiO3 ceramics and PbTiO3 glass-ceramics is different obviously.
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