通过朗道-德文希尔理论探索BaTiO3-PbZrO3-PbTiO3相界处的高压电性能设计 科研新动态 研究背景 钙钛矿铁电陶瓷，特别是锆钛酸铅（Pb(Zr52Ti48)O3，简称PZT），因其卓越的铁电、压电、热释电和介电特性，在非挥发性存储器、压电传感器、光电器件以及铁电能量存储等多个领域大放异彩。然而，PZT的居里温度（Tc）高达...
Designing high piezoelectric properties at the BaTiO3-PbZrO3-PbTiO3 phase boundary by Landau-Devonshire theory 科研新成果 研究背景 钙钛矿铁电陶瓷由于其出色的压电性能而引起了人们的极大兴趣。在这些陶瓷材料中,锆钛酸铅(Pb(Zr0.52Ti0....
PbTiO3-PbZrO3-BiFeO3, 1C-c23Ferroelectrics and Related SubstancesOxidesThis document is part of Subvolume A1 'Oxides' of Volume 36 'Ferroelectrics and Related Substances' of Landolt-Brnstein - Group III Condensed Matter.doi:10.1007/10426842_337M. Adachi...
解:MgO-AL2O3: r大-r小/ r大=15%,即rMg、rAl半径相差大,MgO〔NaCl型、Al2O3〔刚玉结构类型差别大,形成有限固溶体; PbTiO3-PbZrO3: 形成无限固溶体,因为尽管Ti4+、Zr4+半径相差较大〔15. 28,但都是〔ABO3钙钛矿型结构,Ti4+、Zr4+都填充八面体空隙,该空隙体积较大,可填入的阳离子的半径r值可在一...
30.【解】 (1) Mg()-Al_2()_3 只能形成部分互溶置换型固溶体 原因:MgO为 NaCl型结构, Al_2() 为刚玉型结构,结构类型不同,可以通过不等价 离子代换并且形成缺陷来平衡电荷以形成置换型固溶体,但是置换量是有限的,则只能形成 部分互溶固溶体。 如缺陷反应方程式为: MgO Al ()_3 溶体化学式为 Mg...
Electromechanical properties of Pb(In1∕2Nb1∕2)O3–Pb(Mg1∕3Nb2∕3)O3–PbTiO3 single crystals Pb(Sb2_3Mn1_3)O3-PbZrO3-PbTiO3三元系滤波器用的低Kp压电瓷料 Ni掺杂的PbTiO3晶体的制备方法 稀有金属材料 pb(mg13nb23)o3-0.34pbtio3铁电单晶相结构与畴结构研究 铈作为环境材料的研究及应用(稀有金...
In this work, pinched hysteresis of PbZrO3-PbTiO3-PbHfO3 solid solutions is studied through the composition and time dependence of pinched nature. The understanding of the origin of this is further supported by the evidences of defects studied using photoluminescence and diffused reflectance spectrosc...
先驱体合成法制备PbZrO3-PbTiO3-Pb(Sb12-Nb1/2)O3压电陶瓷 本文研究了采用不用先驱体ScTaO4+Zr0.53Ti0.47O3(ST+ZT)和(Sc12Ta12)0.20Zr0.385Ti0.415O2(STZT)以及采用ST+ZrO2+TiO2与PbO进行固相反应合成三元系Pb(Sc12Ta12)0.20-Z... 第十届全国高技术陶瓷学术年会,中国硅酸盐学会,中国金属学会,.....
PbZrO3-PbTiO3 thin filmsThis paper presents general transmission electron microscopy observations of polymeric sol-gel derived PZT(52/48) thin films that were heat treated in a conventional furnace for 1 hour at 700[ddot]C. Results from high resolution TEM, EDS and EELS are also included. ...
摘要: Summary This document is part of Subvolume A1 'Oxides' of Volume 36 'Ferroelectrics and Related Substances' of Landolt-Brnstein - Group III Condensed Matter. Contained elements: Li-Mo-O-Pb-Sb-Ti-Zr.关键词: Ferroelectrics and Related Substances Oxides 出版时间: 2001 ...