Sm-PMN-PT ceramicsultrasound transducer1-3 compositebiomedical imagingFERROELECTRIC CERAMICSPZTFABRICATIONEPOXYDESIGNPiezoelectric 1-3 composite materials have become extensively utilized in diagnostic ultrasound transducers owing to their high electromechanical coupling coefficient, low acoustic impedance,...
当陶瓷中的二氧化锰含量达到1.5 mol%时,其在2 kV/mm条件下表现出0.151%的高电应变。因此,本文为二氧化锰的添加在受体掺杂调节Sm-PMN-PT陶瓷电学性能中起到的作用方面研究提供了一个新的视角。 Effects of Mn-doping on the Structure and Electric...
为了研究Sm-PMN-PT陶瓷场诱应变特性及作为致动器的应用效果,本论文研究了0.025Sm-PMN-x PT陶瓷的电滞回线、单极和双极电场诱应变曲线,制作了大场诱应变微位移致动器元件。测试结果发现,Sm-PMN-PT系列陶瓷应变量很大,可达0.116%,归一化Smax/Emax高达1150 pm/V,并且滞后小;以0.025Sm-PMN-0.28PT陶瓷为位移元件...
PT含量为26%的PMN-PT单晶其在8W的功率激发下,压电系数增加了25%,柔度系数增加了12%,机电耦合系数增加了17%,机械品质因数降低了73%。PT含量为29%的PMN-PT单晶其在4.49W的功率激发下,压电系数增加了33%,柔度系数增加了20%,机电耦合系数增...
以聚偏氟乙烯-三氟氯乙烯(P(VDF-CTFE))为原料,经过消去反应脱除氯化氢,得到含有分子内双键的P(VDF-CTFE-DB).选择高介电的钐掺杂铌镁酸...
In this work, an all-inorganic transparent Sm-doped Pb(Mg1/3Nb2/(3))O-3-PbTiO3 (Sm:PMN-PT) film has been successfully grown on Mica substrate via a simple one-step sol-gel process. The flexible film shows an ultrahigh piezoelectric coefficient d(33) of 380 pm V-1 owing to the ...
The Sm-PMN-PT polycrystalline ceramics meets basic criteria of solid state refrigeration.It shows high polarization of 40 C/cm2, piezoelectric coefficientd33 146pm/V and pyroelectric coefficient 4610 C/m2/K1.The Sm-PMN-PT shows a maximum ECE entropy (|S|) and temperature (|T|) changes i....
Sm-PMN-PT ceramicselectro-strainacceptor dopingMnO2-modified Pbdoi:10.1142/S2010135X23500042Wu ChaofengCenter of Advanced Ceramic Materials and Devices, Yangtze Delta Region Institute of Tsinghua University, Zhejiang 314006, P. R. ChinaGong Wen
以聚偏氟乙烯-三氟氯乙烯(P(VDF-CTFE))为原料,经过消去反应脱除氯化氢,得到含有分子内双键的P(VDF-CTFE-DB).选择高介电的钐掺杂铌镁酸铅-钛酸铅(PMN-PT-Sm)铁电陶瓷作为复合相,以可交联的P(VDF-CTFE-DB)作为聚合物基体,通过自由基反应形成交联型P(VDFCTFE-DB)/PMN-PT-Sm纳米复合薄膜.研究了不同掺杂...
Sm-PMN-PT ceramicselectro-strainacceptor dopingMnO 2 -modified Pb 0.9625 Sm 0.025 (Mg 1/3 Nb 2/3 ) 0.71 Ti 0.29 O 3 ceramics were prepared via a solid-state reaction approach. Results of detaWu, ChaofengGong, WenGeng, JinfengCui, Jianye...