Method for producing a piezoceramic

摘要

In a method for producing a PZT piezoceramic, an intermediate compound is formed having the formula ZrxTi1-x(O2(ZTO) in a hydrothermal process. A ceramic having a desired zirconium/titanium ratio can be produced from two such ZTO powders having respectively different x-values. These powders are blended with lead oxide, and if desired with dopants, and are converted into a PZT powder by calcining. The calcined PZT powder is then sintered to form a high-density PZT ceramic which can be aligned precisely at the morphotropic phase boundary.