Preparation and Characterization of (K0.5Na0.5)0.94-2xLi0.06SrxNb0.98Sb0.02O3 Lead-free Piezoelectric Ceramics
Source abstract
Abstract
采用传统陶瓷烧结工艺制备了(K 0.5 Na 0.5 ) 0.94-2 x Li 0.06 Sr x Nb 0.98 Sb 0.02 O 3 无铅压电陶瓷, 研究了陶瓷的结构、烧结特性及电性能特征. 研究结果表明: 制备的KNLSN-Sr x 陶瓷为单一的具有四方相的钙钛矿结构, SEM照片中可以看出材料的平均晶粒尺寸随着Sr掺入量的增加逐渐变大, 陶瓷的烧结温度随Sr掺入量的增加而升高, Li, Sr和Sb掺杂(K 0.5 Na 0.5 )NbO 3 后, 材料的压电系数 d 33 、平面机电耦合系数kp得到提高, 同时介电损耗tanδ和机械品质因子 Q m 降低, Sr掺入量在2mol%时各项性能最佳( d 33 =130pC/N, k p =34.5%, tan δ =4.2%).
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Acoustic Wave Resonator Technologies · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (12)
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