欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用固相烧结法制备了Bi3.55Nd0.45Ti3-xNbxO12（x=0、0．02、0．05、0．08、0．15）系层状钙钛矿结构无铅铁电陶瓷。通过X射线衍射仪（XRD）可以看出陶瓷样品为铋层状钙钛矿结构，并无杂相生成。随着Nb的含量增多，其衍射峰向低角度移动。从扫描电子显微镜（SEM）可以看出陶瓷晶粒为片状。利用阻抗分析仪LCR（HP4284A）测试了陶瓷的介电性能，研究表明AB位共掺钛酸铋陶瓷的居里温度在275℃左右，而Bi4Ti3O12的居里点是675℃，前者比后者下降了400℃。在利用铁电综合测试系统对铁电性能的研究过程中发现，与x=0．05相比，x=0．15的矫顽场（Ec）和剩余极化强度（2Pr）分别减小了5kV／cm和2μC／cm^2。
英文摘要：
Bi3.55Nd0.45Ti3-xNbxO12（x=0、0.02、0.05、0.08、0.15） ferroelectric ceramics of a layered perovskite structure with no lead were prepared using the solid-state reaction. Bi3. 55 Nd0.45 Ti3-x NbxO12 ceramics were pure phases and no other phases appeared by X-ray diffraction（XRD） ; and it showed the peak（117） had a lower angle shift with niobium concentration increasing. Scanning electron microscope（SEM） showed the platelike shapes of the sampies, which were related to the layered perovskite structure of bismuth titanate. Dielectric properties were measured with an impedance analyzer LCR（HP 4284A）. The Curie temperature of A- and B-site-modified Bi4 Ti3 O12 ceramic was 275 ℃. Compared with the Curie temperature of Bi4 Ti3O12 （675℃）, it was 400 ℃ lower. In the process of studying the ferroelectric properties through Radiant Ferroelectric test system, in contrast to x=0. 05, when x=0. 15, the coercive field and remnant polarization decreased 5kV/cm and 2/iC/cm^2, respectively.
同期刊论文项目
同项目期刊论文
Effect of Nd substitution on the microstructure and electrical properties of Bi7Ti4NbO21 piezocerami
Electrical properties of Li doped sodium potassium niobate thick films prepared by a tape casting pr
Preparation and Ferroelectric Properties of (Na0.5Bi0.5)0.94Ba0.06TiO3 Thin Films Deposited on Pt El
Enhanced Ferroelectric and Piezoelectric Properties of Textured K0.45Na0.55NbO3 Ceramics Prepared by
Preparation of textured K2BiNb5O15 ceramics with rod-like templates by the screen-printing technique
Effect of WO3 doping on dielectric and ferroelectric properties of 0.94(Bi0.5Na0.5)TiO3-0.06BaTiO3 c
Studies of dielectric properties of rare earth (Dy, Tb, Eu) doped barium titanate sintered in pure n
Bright upconversion luminescence and increased Tc in CaBi2Ta2O9:Er high temperature piezoelectric ce
The Composition and Temperature-Dependent Structure Evolution and Large Strain Response in (1-x)(Bi0
Fabrication and Piezoelectric Property of Textured Bismuth Layered Structure Ceramics by Hot Pressin
Dielectric properties and relaxor behavi or of high Curie temperature (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3&n
Orientation dependence of the dielectric and piezoelectric properties for the Ba0.98Ca0.02Ti0.96Sn0.
Phase transitions, relaxor behavior, and large strain response in LiNbO3-modified Bi0.5(Na0.80K0.20)
Dielectric and piezoelectric properties of the Ba0.92Ca0.08Ti0.95Zr0.05O3 thin films grown on differ
Large Strain Response in 0.99(Bi0.5Na0.4K0.1)TiO3–0.01(KxNa1?x)NbO3 Lead-Free Ceramics Induced by th
Bright upconversion emission and enhanced electric properties in Er doped CaBi4Ti4O15 multifunctiona
Er doped BaBi4Ti4O15 multifunctional ferroelectrics: up-conversion photoluminescence, dielectric and
Polarization-induced enhancement of photoluminescence in Pr3+ doped ferroelectric diphase BaTiO2-CaT
Luminescent. Dielectric, and ferroelectric properties of Pr doped Bi7Ti4NbO21 multifunctional cerami
Correlation between the microstructure and electrical properties in high-performance (Ba 0.85 Ca 0.1
Phase transitions, relaxor behavior, and electrical properties in (1-x)(Bi0.5Na0.5)TiO3-x(K0.5Na0.5)
Strong elastico-mechanoluminescence in diphase (Ba,Ca)TiO3:Pr3+ with self-assembled sandwich archite
Ferroelectric, piezoelectric properties of Aurivillius phase intergrowth ferroelectrics and the unde
Temperature Dependence of Ferroelectric and Dielectric Properties of High Strain Textured 0.98(0.94N
期刊信息
位置：