The crystal symmetry changes from orthorhombic structure to tetragonal .

当x0.25时，晶格对称性由正交对称性变为 四方对称性。

The pattern of XRD illustrated that the pure perovskite phase ( tetragonal ) had been obtained for all samples .

XRD分析结果表明所制备的样品都 生成了纯的钙钛矿 结构，并且都为 四方 相。

This paper deals with the autoindexing programming for the electron-diffraction of cubic system tetragonal system and orthorhombic system .

本程序能对立方晶系、 四方 晶系、正交晶系晶体的电子衍射进行自动检索。

At the same time the larger porocity the smaller bore the evener porocity and the more tetragonal pHase amounts of coatings were the more excellent thermal cycling performance was .

同时，涂层的孔隙率越大，孔尺度越小、分布越均匀、所含 四方相越高，则涂层的抗热震性能越好。

Preparation and Characterization of Tetragonal BaTiO_3 Thin Film with Self-assembled Monolayers Technique There were some cool dudes in sunglasses standing about .

四方 相BaTiO3薄膜的自组装制备与表征有一些戴着太阳镜、服装华丽的城里人站在四周。

TEM and XRD results show that products have the rutile type tetragonal phase .

TEM和XRD结果表明产物具有 四方金红石 结构。

The transformation volume change and the transformation width of ZrO_2 ( t ) on the fracture surface of ZTA ( Zirconia Toughened Alumina ) and TZP ( Tetragonal Zirconia Polycrystals ) are studied by X-ray diffraction .

利用X射线衍射技术研究了氧化锆增韧氧化铝陶瓷（ZTA）和四方氧化锆多晶陶瓷（ TZP）的断裂表面上四方氧化锆ZrO2（t）的 相变量和相变宽度。

Phase Diagrams and Dielectric Properties of Epitaxial BST Thin Films on Tetragonal Substrates

四方衬底上BST薄膜的相图及介电特性

First Principles Calculation of Electronic Structure and Elastic Constants of Tetragonal HfO_2 Crystal

四方 晶 相HfO2电子结构和弹性常数的第一性原理计算

The coordination of copper (ⅱ) ion can be seen as a distorted tetragonal pyramid .

每个Cu离子的配位环境可以看做为一个扭曲的 四方锥型结构。

In this thesis the spectral and thermal experiments results of CBN-28 were introduced and were compared with some other tetragonal tungsten bronze crystals .

本文对CBN-28晶体的光谱特性和热特性进行了实验结果进行了介绍，并与其他 钨青铜结构铌酸盐晶体进行了比较分析。

The present work was to determine the optimum sintering system and properties of the nanometer tetragonal polycrystalline zirconia green body by the aqueous gel tape casting process .

采用水基凝胶流延工艺制备 四方多晶氧化锆 薄膜，确定合理的烧成制度，并 考察 薄膜 的 显微 结构与烧结性能。

The influence of the tetragonal phase zro_2 on the mechanical properties of BGC

四方相ZrO2的加入对BGC材料力学性能影响的初步研究

Tetragonal enantiomorphic hemihedral class Liquid water can assume only a single symmetrical shape .

液态水只能有一种对称形状。

The orientation distribution of domains and the piezoelectric coefficient of tetragonal ceramic were discussed under conditions of unidirectional polarization and scanning polarization .

分析了在单向极化和扫描极化条件下，本 征 效应对 四方 相压电陶瓷压电系数的影响。主要讨论了电畴转向分布和陶瓷的压电系数。

Raman Scattering Studies on PZT Thin Films for Trigonal and Tetragonal Phase Transition

硅基PZT热释电薄膜三方- 四方相变的拉曼散射研究

The coordination polyhedron of copper ion is a five-coordination tetragonal cone .

这是一个二聚体，两个铜离子的配位多面体均为五配位的 四方锥形。

The tetragonal ZrO_2 microcrystallites of nano-size are considered to be the original crystal nuclei .

经分析认为 四方ZrO＿2纳米微晶可能是体系的晶质原核。

Preparing mechanism and structural properties of nanometer tetragonal SnO_2 by chelating-precipitation method were reported .

采用络合沉淀法制备了纳米 四方 相SnO2颗粒，并对制备机理和颗粒结构和性质进行了实验研究。

Synthesis and Mechanism of Tetragonal Perovskite Structure PbTiO_3 by a Hydrothermal Route

四方 相钙钛矿PbTiO3的水热合成及机理研究

We also study the relation between the dielectric constant and lattice distortion of the PT tetragonal and cubic phase region .

我们还研究了PT 四方 相区和立方相区介电常数与晶格畸变的关系。

Structure and properties of colored dental tetragonal zirconia stabilized by yttrium ceramics

牙科着色氧化钇稳定 四方 多 晶氧化锆陶瓷的结构与性能

The anisotropic biaxial misfit strains lower symmetry of the paraelectric phase from tetragonal to orthorhombic so symmetry of ferroelectric phases is also lowered .

各向异性错配应变使薄膜中的顺电相的对称性从 四方降低到正交。因此，铁电相的对称性也被降低了。

The results show that all PZT films are the tetragonal polycrystal structure with no evidence of preferential orientation .

结果显示，这些薄膜均为 具有 四方 相 钙钛矿结构的多晶颗粒膜，没有明显的生长方向。

In this study tetragonal zirconia polycrystal was used to toughen hydroxyapatite .

用 透射 电子 显微镜对 四方氧化锆多晶（ZTP）增韧羟基磷灰石（HA）复合材料的 微观 相 结构进行了 观察 与 分析。

Mg-Al spinel structure changes from cubic to tetragonal and the unit cell parameters also have great changes .

镁铝尖晶石结构与晶胞参数变化较大，由单晶的立方结构转变为 四方结构。

Synthesis of Rugby-Ball Like Germanium Nanocrystals with Tetragonal Structure by Pulsed Laser Ablation

脉冲激光烧蚀制备 四方结构的橄榄球状Ge纳米颗粒

The powder and the pieces are all tetragonal phase .

通过 XRD 分析，粉体与 瓷片均 呈 四方 相。

We comprehensively investigate and discuss the relation in the tetragonal rhombohedral and coexistence phase region of PZT .

我们对PZT 四方相区、 角相区和混合相区介电常数与晶格畸变的关系进行了全面研究和探讨。

The dominant phase is cubic with slight phase of tetragonal at this temperature .

在这个温度下得到的 晶粒主要是立方相，并含有少量的 四方 相。