陶瓷的介电特性揭示了铁电弛豫行为,即在350‑500K的温度范围内,从顺电相到铁电相的扩散相变区域。 Crystal and grain structure, dielectric and piezoelectric properties of (1-x-y)BiFeO3-xPbFe0.5Nb0.5O3-yPbTiO3 ceramics ...
thermal stability/ high thermally stable ceramicsferroelectric propertiessolid-state reaction techniqueHigh temperature (0.9-x)BiFeO 3 –(x)PbTiO 3 –0.1BaTiO 3 (BF–PT–BT) ceramics at MPBs (x=0.18, 0.20 and 0.22) were synthesized by solid-state reaction technique. Well-saturated P–E loops ...
Multiferroic Properties of Y-doped BiFeO3 Ceramics and Bi0.9Y0.1FeO3-PbTiO3 CeramicsBiFeO3是少数在室温下同时具有铁电性和铁磁性的材料之一,在信息存储,卫星通讯,磁电传感器等领域具有重要的应用前景. 本论文首先对BiFeO3陶瓷进行Y掺杂,发现制备得到的样品为三方钙钛矿结构,属于R3c空间群;添加Y2O3对BiFeO3陶瓷的介...
perovskite-structured BiFeO3–Bi(Zn1/2Ti1/2)O3–PbTiO3 (BF–BZT–PT) ternary solid solutions were prepared with traditional solid-state reaction method and demonstrated to exhibit a coexistent phase boundary (CPB) with Curie temperature of TC~700°C in the form of ceramics with microstructure ...
(1-x)(Bi0.8Gd0.2)FeO3-xPbTiO3(BGF-PT) solid solutions ceramics of x=0.55,0.50,0.4975, 0.49 and 0.45 were prepared by the mixed oxide method. Gd3+of 20 at% was introduced into the Bi3+site to improve the dielectric and piezoelectric properties of BFPT without causing the significant re...
Dielectric and relaxor ferroelectric properties of Ba-doped Pb(Zr,Ti)O3 ceramics (Pb,Ba)(Zr,Ti)O 3 is a relaxor ferroelectric material. Dielectric and ferroelectric properties of (Pb 1- x Ba x )(Zr 0.70 Ti 0.30 )O 3 ceramics have b... Z Na,X Zhuo,Y Feng,... - 《Journal of El...
In the present study, we report a nonergodic relaxor ferroelectric composition for high temperature piezoelectric applications, 0.57BiFeO3-0.21K0.5Bi0.5TiO3-0.22PbTiO3, which exhibits Tm around 420°C. By combining the results of in-situ synchrotron XRD and strain measurements using digital image c...
It was found that the morphotropic phase boundary (MPB) composition of BF-BTx-PT ceramics was in the vicinity of x=0.15, which exhibits optimal properties with piezoelectric constant d 33 of 60 pC/N, high Curie temperature of 550 °C, and low sintering temperature of 920 °C. Measurements...
bfo含量对bi(mg1/2 ti1/2)o3-pbtio3-xbifeo3陶瓷结构和性能的影响 bfo content-influence on the structure and properties of the bi (mg12 ti12)o3-pbtio3-xbifeo3 ceramics 文档格式: .pdf 文档大小: 941.27K 文档页数: 6页 顶/踩数: 0/0 ...
The piezoelectric and ferroelectric properties of ceramics in the (1- x )[0.35Bi(Mg 1/2 Ti 1/2 )O 3 -0.3BiFeO 3 -0.35BiScO 3 ] - x PbTiO 3 (0.46≤ x ≤0.50) solid solution have been studied as a function of temperature with a view to establishing their potential for commercial ...