The addition of excess WO_3 improved the dielectric temperature characteristic of PMW-PNN-PT ceramics, but the dielectric constant decreased.
过量WO_3能够改善陶瓷的温度稳定性，同时会降低样品的介电常数。
The DC bias field dependence characteristics of the PMN-PZN-PT relaxor ferroelectric ceramics were investigated.
在一定温度范围内，对PMN - PZ N - PT系弛豫铁电陶瓷直流偏压下的介电非线性进行了研究。
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