2024年5月3日,Phys. Rev. B.在线发表了中国科学院宁波材料技术与工程研究所钟志诚研究员课题组的研究论文,题目为《Revisiting the phase diagram and piezoelectricity of lead zirconate titanate from first principles》,论文的第一作者...
PZT phase dia- gram determination by measurement of elastic moduli. Journal of the European Ceramic Society, 2005, 25 (13): 3213-3221A. Bouzid, E. M. Bourim, M. Gabbay, et G. Fantozzi, « PZT phase diagram determination by measurement of elastic moduli », J. Eur. Ceram. Soc.,...
The Discrete Variational X卤 method (DV-X卤) with an embedded cluster scheme was used to analyze effects of isovalent metal substitution in the anti ferroelectric (AFE) region of PZT phase diagram. Consequences of AFE structural distortions in terms of changes in charge distribution and chemical ...
Powder X-ray diffraction patterns indicate pseudocubic phase of compositions on PMN-PZT system phase diagram. La doping in PMN-PZT system inhibited grain growth while increasing grain size with PMN concentration. Density of the ceramics is increased to 1.5 mole% La doped PMN-PZT compositions and ...
Fig 1PhasediagramOfPZT-95/5 [1] (a)TwO-cOmpOnentsystemOfsO idsO utiOn;(b)Temperatureversuspressure ! 收稿日期:2001-11-12;修回日期:2002-01-07 作者简介:刘高(1973—),女,硕士研究生,助理研究员 国外对爆电电源的研究源于冲击作用下铁电陶瓷迅速去极化现象 [24] 。起初是对不同的铁电体材 料进行...
Introduction The closed shell transition metal (TM) oxides like SrTiO3 have been extensively studied for their ferroelectric properties, phase transitions and soft modes [1]. They are now of great technological importance for electronic devices such as dynamic random access memories (DRAMs), ...
In particular, PZT can exhibit the highest dielectric response in the region of the temperature-composition phase diagram. As shown in Fig. 1, the crystal structure of PZT can change from tetragonal phase (T phase) to rhombohedral phase (R phase) as the Zr/Ti ratio near 52/48 [23], [...
Elastic and anelastic properties of ceramic samples of multiferroic perovskites with nominal compositions across the binary join PbZr0.53Ti0.47O3–PbFe0.5Ta0.5O3 (PZT–PFT) have been assembled to create a binary phase diagram and to address the role of strain relaxation associated with their phase ...
Fig.1—3:Thephasediagram ofthesolidsolution ofPbTi03 and ZrTi03 5 (1)居里温度以上,PZT系统为立方对称的钙钛矿结构。 (2)较高的居里温度横贯整个相图,在很宽的,可利用的温度范围,铁电状态是稳定的。 (3)准同型相界(MorphotropicPhaseBoundary MPB)将铁电相分成三方相和四方相,接近52/48 ...
phase diagramssol-gel processingsolid solutionsstoichiometryX-ray diffraction/ time-temperature-transformation diagramSol-Gel prepared PZT films of composition Pb1.05 (Zr0.53Ti0.47)O3 were isothermally annealed at different temperatures between 400°C and 700°C for various times and the phases formed ...