The increase of dielectric constant and electrostrictive strain resulted from the enlargement of the size of effective ordered micro-regions and the elimination of PbO film among crystal borders.

• 铅欠缺使介电和电致应变性能增加的原因主要是由于“有效有序微区”尺寸的增大和晶界间过量氧化铅层的消除。