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高性能铌镁酸铅-钛酸铅定向压电陶瓷的研究

High Performance Grain-oriented 0.7Pb(Mg_1/3Nb_2/3)O₃-0.3PbTiO₃ Piezoelectric Ceramics

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【Author】 WANG Ping-Chu, SUN Shi-Wen, PAN Xiao-Ming, ZHU Li-Hui, LI Dong-Lin, WEN Bao-Song, HUANG Qing-Wei, YIN Zhi-Wen(State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China)

【机构】中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室；上海大学材料学院；中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室上海 200050；上海 200050 上海大学材料学院；上海 200072；上海 200050；上海 200050；

【摘要】用定向凝固技术制备了择优方向为[112]的0.70Pb(Mg1/3Nb2/3)03-0.30PbTiO3高性能定向压电陶瓷.该陶瓷[112]方向的取向度约为35％,准静态压电常数d33约为1500-1600pC/N,耦合系数kt-0.51,k33-0.82,22kV/cm时的场致应变约为0.23％.更多还原

【Abstract】 High performance grain-oriented 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 ceramics were prepared by the directional solidification method, of which the preferential orientation is [112], and the orientation degree is about 35%, the quasistatic d33 is about 1500-1600pC/N, coupling factors kt is 0.51 and k33 is 0.82, and the strain is 0.23% under 22kV/cm electric field.更多还原