针对传统的Sol-gel法制备钛酸铅铁电陶瓷水解速率慢、烧结温度高、制备周期长等不足,首次采用在溶胶中直接加甲醇水溶液水解和新鲜凝胶直接烧结的方法,实现了钛酸铅纳米晶的快速合成.用TEM观察了钛酸铅纳米晶的形貌和尺寸,用XRD法测定了钛酸铅纳米晶的结构,并制得纯度高、致密性好的钛酸铅纳米陶瓷,对其介电、铁电和热释电性能进行了初步研究.研究表明,用改进的Sol-gel法制备的钛酸铅陶瓷仍保持其优良的介电性能和铁电性能.
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