以固态氧化物为原料,采用固态合成工艺制备Pb(Zn1/3Nb2/3)O3-Pb(Ni1/3Nb2/3)O3-Pb(ZrTi)O3(PZN-PNN-PZT)压电陶瓷,并研究了锆钛比(r(Zr)/r(Ti))、Ba2+的A位取代及Ba2+、La3+的A位复合取代对压电陶瓷电性能的影响。结果表明,PZN-PNN-PZT...以固态氧化物为原料,采用固态合成工艺制备Pb(Zn1/3Nb2/3)O3-Pb(Ni1/3Nb2/3)O3-Pb(ZrTi)O3(PZN-PNN-PZT)压电陶瓷,并研究了锆钛比(r(Zr)/r(Ti))、Ba2+的A位取代及Ba2+、La3+的A位复合取代对压电陶瓷电性能的影响。结果表明,PZN-PNN-PZT压电陶瓷在r(Zr)/r(Ti)=1.03下,进行Ba2+,La3+的A位复合取代后,即式子在Pb0.92Ba0.04La0.04(Ni1/3Nb2/3)y(Zn1/3Nb2/3)z Zrm Tin O3时压电性能最佳,其介电常数εT33/ε0=5 657,压电常数d33=709pC/N,机电耦合系数kp=0.69,品质因数Qm=45,居里温度TC=180.9℃。展开更多
Two chemical compositions PbLa(Zr,Sn, Ti)O3 (PLZST) ceramics near the ferroelectric-anti- ferroelectric (FE/AFE) phase boundary were pre- pared by a traditional solid-state reaction process. The electrostriction prope...Two chemical compositions PbLa(Zr,Sn, Ti)O3 (PLZST) ceramics near the ferroelectric-anti- ferroelectric (FE/AFE) phase boundary were pre- pared by a traditional solid-state reaction process. The electrostriction properties under the electric field and the influence of hydrostatic pressure on the phase transition and the dielectric properties of these PLZST ceramics have been studied. Under the AC electric field, the strain of these two samples reached 0.21% and 0.13%, respectively. With increasing pressure, the FE/AFE phase transition temperature of the antiferroelectrics decreased and the antiferro- electric-paraelectric (AFE/PE) phase transition tem- perature increased, while the ferroelectric-paraelec- tric (FE/PE) phase transition temperature of the ferroelectrics decreased.展开更多
文摘以固态氧化物为原料,采用固态合成工艺制备Pb(Zn1/3Nb2/3)O3-Pb(Ni1/3Nb2/3)O3-Pb(ZrTi)O3(PZN-PNN-PZT)压电陶瓷,并研究了锆钛比(r(Zr)/r(Ti))、Ba2+的A位取代及Ba2+、La3+的A位复合取代对压电陶瓷电性能的影响。结果表明,PZN-PNN-PZT压电陶瓷在r(Zr)/r(Ti)=1.03下,进行Ba2+,La3+的A位复合取代后,即式子在Pb0.92Ba0.04La0.04(Ni1/3Nb2/3)y(Zn1/3Nb2/3)z Zrm Tin O3时压电性能最佳,其介电常数εT33/ε0=5 657,压电常数d33=709pC/N,机电耦合系数kp=0.69,品质因数Qm=45,居里温度TC=180.9℃。
基金supported by the 973-Project of the Ministry of Science and Technology of China(Grant No.2002CB613307)the National Natural Science Foundation of China(Grant No.50472052)the Key Science and Technology Research Project from the Ministry of Education of China(Grant No.03155).
文摘Two chemical compositions PbLa(Zr,Sn, Ti)O3 (PLZST) ceramics near the ferroelectric-anti- ferroelectric (FE/AFE) phase boundary were pre- pared by a traditional solid-state reaction process. The electrostriction properties under the electric field and the influence of hydrostatic pressure on the phase transition and the dielectric properties of these PLZST ceramics have been studied. Under the AC electric field, the strain of these two samples reached 0.21% and 0.13%, respectively. With increasing pressure, the FE/AFE phase transition temperature of the antiferroelectrics decreased and the antiferro- electric-paraelectric (AFE/PE) phase transition tem- perature increased, while the ferroelectric-paraelec- tric (FE/PE) phase transition temperature of the ferroelectrics decreased.
