BiFeO3-PbTiO3(BF-PT) crystalline solutions have been modified by La3+, Ga3+and Ba2+substituent. The modified BF-PT had morphotropic phase boundary (MPB), at which the ferroelectric rhombohedral phase transferred to the tetragonal symmetry. The piezoelectric properties at the MPB were strongly ...
钛酸铅PbTiO3(PT)的引入稳定了钙钛矿相,并在x~0附近形成了一个晶型相界(MPB)。在该区域,(1-x)BFxPT系统显示出相当高的压电特性,但同时保持较高的导电性。在这方面,近年来,通过创建基于BF和PT的三元系固溶体来获得新的多...
可是如果XRD图谱中包含两相的话，就完全没法子了。我测的材料是MPB组分的BiFeO3-PbTiO3，为三方（BiFeO3...
56, no. 8, aUgUsT 2009Abstract—Piezoresponse force microscopy (PFM) was used to investigate the domain structure of multiferroic BiFeO3-PbTiO3 single crystals with morphotropic phase boundary (MPB) compositions. The PFM data demonstrate the piezo-electricity and the PFM domain responses under the ...
Coexisting ferroelectric and magnetic morphotropic phase boundaries in Dy-modified BiFeO3-PbTiO3 multiferroics Morphotropic phase boundary (MPB) in ferroelectric solid solutions can significantly enhance the dielectric and piezoelectric performances of the materials... Jian,Zhuang,Lun-Wei,... - 《Applied Ph...
Giant Polarization and High Temperature Monoclinic Phase in a Lead-Free Perovskite of Bi(Zn0.5Ti0.5)O3BiFeO3PbTiO3-Bi(Zn1/2Ti1/2)O3 is considered to... P Zhao,J Chen,R Yu,... 被引量: 0发表: 2016年 Evidence for pressure induced polarization rotation, octahedral tilting and reentrant fer...
The Curie point at the MPB is also reported to be 632?C; this is in comparison to 386? C for PZT; hence BFPT is a potential high temperature piezoelectric material. Single crystals of various complex perovskites, most notably Pb(Mg 1/3 Nb 2/3 )O3 -PbTiO3 and Pb(Zn 1/3 Nb 2/3...
BiFeO3一PbTiO3 固 熔薄膜 ,发现溅射后 的薄膜 ,当退火温度在 600 oC 以 下时制备的薄膜呈顺磁性和顺 电性 ,而当退火温度 升至600 ～700 oC时 ,无论 在空气 中还是在 PbO 气 氛中退火 ,制备 的薄膜均为磁性和铁 电性共存 l1 。 通过与适当比例 的铁 电材料 的固熔 ,可 以使磁控溅 ...
钙钛矿型BiScO3–PbTiO3 (BS–PT)系统已被报道具有压电特性的PZT铁电相变温度比较高(TC,450°C)附近的MPB [ 10 ]和[ 11 ]。虽然BS–PT显示高的温度稳定性和改进的性能相比,压电陶瓷,氧化钪的成本高,目前限制商业开发。此外,因BiMeO3–PbTiO3系统铅氧化物强毒性,基陶瓷的铅的使用造成了严重的铅污染和环境...
Piezoelectricity in Excess of 800 pC/N over 400 °c in BiScO<inf>3</inf>-PbTiO<inf>3</inf>-CaTiO<inf>3</inf>Ceramics 2021, ACS Applied Materials and Interfaces Nanoscale ferroelectricity in pseudo-cubic sol-gel derived barium titanate - bismuth ferrite (batio<inf>3</inf>- bifeo<inf>3...