perovskite

Prepartion, crystal structure and spectra of rare earth-alkaline earth niobate of perovskite type

钙钛矿型稀土碱土铌酸盐的合成、结构和光谱性质

XRD and SEM studies indicated that the composites comprised of only two phases, BaTiO_3 phase with perovskite structure and NiFe_2O_4 phase with spinel structure.

XRD和SEM研究结果表明复合材料中只含有钙钛矿结构的BaTiO3和尖晶石结构的NiFe2O4，这说明共烧过程中两者没有发生明显的化学反应。

Atomic properties and ionic conductivity data of perovskite-type oxides were collected from literatures and experiments. The relationship between the electrical conductivity and the atomic property was examined.

本文收集了这些钙钛矿型氧化物的原子参数与离子导电率，研究其间的内在联系。

Synthesis, Structure and Interlayer Behavior of A New Tantalate KSr_2Ta_3O_ ( 10) with Perovskite-like Structure

类钙钛矿结构新钽酸盐KSr2Ta3O（10）的合成、结构与层间特性

Synthesis and Characterization of Novel Tungsten Phosphates 、 Sodium Titanium Oxide 、 Sodium Tin Oxide; Fabrication and Properties of Epitaxial Stannate Thin-films and Heterojunctions with the Perovskite Structure

钨磷酸盐、锡酸钠、钛酸钠新化合物合成与结构表征钙钛矿锡酸盐外延薄膜及相关异质结制备与物性研究

XRD analysis showed that Ca-doping resulted in structural transformation. The samples of x ≤ 0.15 have tetragonal perovskite structure, but the samples of x> 0.15 are rhombohedral phase.

XRD结果分析表明，Ca掺杂引起了样品晶体结构的转变，x≤0.15的样品为四方钙钛矿结构，而x>0.15的样品则为菱方钙钛矿相。

MgSiO_3 perovskite and ferropericlase ( Mg, Fe) O are generally considered as the most dominant components in the Earth's lower mantle.

钙钛矿MgSiO3和镁方铁矿（Mg，Fe）O作为地球下地幔含量最丰富的候选矿物，其高温高压实验数据用来与地震学探测数据进行对比以限定下地幔的真实矿物学组分。

Dielectric behavior of complex perovskite lead calcium titanate ceramics

复合钙钛矿结构铁电陶瓷钛酸铅钙的介电弛豫特性

Perovskite-like organic-inorganic hybrid compound is a kind of material which has special crystal structure.

有机 - 无机复合类钙钛矿材料是一类具有特殊晶体结构的新型材料.

The lower the precursor's concentration is, the higher the excess of Bi element is needed to form the pure perovskite nanoparticles.

通过X射线衍射发现，前驱体溶液的浓度越低，得到纯钙钛矿相所需的铋元素过量比越大。

Nanometer perovskite-type catalysts La _ ( 1-x ) Sr _ xMnO _ 3 are preparation by malic acid sol-gel method that add surface-active agent.

采用添加表面活性剂的苹果酸溶胶 - 凝胶法制备了纳米钙钛石型氧化物催化剂La_ ( 1-x ) Sr_xMnO_3.

The results show that the content of tetragonal phase is increasing in BNBT ceramics by direct reaction sintering method but still exhibiting a single phase of perovskite structure.

结果表明，直接反应烧结法不影响BNBT陶瓷的钙钛矿相结构，但可使准同型相界处组成的四方相含量增加；

Due to the strong correlation among spin, electron and orbital degree of freedom, doped perovskite manganites exhibit unusual magnetic and electronic properties, such as colossal magnetoresistance, charge ordering ( CO), orbital ordering, phase separation ( PS) and so on.

掺杂的钙钛矿锰氧化物由于其自旋、电荷及轨道自由度间的强关联作用而具有特殊的磁、电性质，如：庞磁电阻效应，电荷有序，轨道有序，相分离等。

In this article, the crystal structure of perovskite photocatalyst is presented.

介绍了钙钛矿型光催化剂的结构；

This showed the catalytic activity of perovskite-type oxides well associated with the B-O bonding strength of the oxides active renter.

说明钙钛矿型复合氧化物的催化活性与体系活性中心的B&O键合作用能力有关。

Hydrothermal Synthesis and Characterization of the Perovskite Niobates; Negative Temperature Coefficient of Resistance of Nb-doped SnO_2 Ceramics

钙钛矿型铌复合氧化物的水热合成及表征铌掺杂氧化锡陶瓷的电阻负温度系数特性

Purpose-To synthesise calcium titanate with a perovskite structure as an anticorrosion pigment for metal protecting paints.

目的 - 采用具钙钛矿结构的钛酸钙合成用于金属保护漆的防腐颜料.

The preferred synthesis conditions to prepare perovskite-type structure were ascertained and NBT-based fine powders were produced.

通过实验研究确定了适当的合成工艺条件,并制备出NBT基超细粉体.

The substitution of Tb 3+ for Pb 2+ induces lattice aberrance, which resulted in lowering the crystallization ability of perovskite and the tetragonality of the powders as well.

形成的钙钛矿结构中，Tb3+取代Pb2+进入晶格位置，产生阳离子空位，诱发晶格畸变，使钙钛矿相的析晶能力比相同热处理条件下未掺杂Tb3+的PT低。

The results showed that the PbTiO_3 nanocrystal structure is uniform tetragonal phase perovskite structure when heat-treatment is above 600 ℃, and the grain size is increased by increase of calcining temperature.

分析表明：焙烧温度高于600℃时可形成单一四方相钙钛矿结构的PbTiO3纳米粉体，并且随热处理温度的升高，晶粒度增加。

X-ray diffraction reveals that after a heat treatment at 700 ℃, the film is in a single phase of tetragonal perovskite structure.

X射线衍射证实，经700℃热处理后，膜呈现四方钙钛矿的单相结构。

The pattern of XRD illustrated that the pure perovskite 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.

X — Ray Diffraction ( XRD ) spectra indicate that these compounds are single perovskite in structure.

X射线衍射 ( XRD ) 鉴定均为单一相钙钛矿型氧化物.

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

Recent developments and applications of protonic conductors with perovskite structure were summarized in the present paper.

简要介绍了钙钛矿型复合氧化物氢离子导体开发及应用研究现状和应用前景.

Perovskite-type ferroelectric thin films have received great attention as one kind of functional materials over the years.

钙钛矿型铁电薄膜作为一种功能材料，历年来都受到国内外学者的广泛关注。

Study of the Structure of Perovskite Type LaMnO_ ( 3+ λ) and Activity for Dimethyl Benzene Oxidation

钙钛矿型LaMnO（3+λ）的结构及对二甲苯氧化的活性研究

The LaNiO _ 3 perovskite phase is the most active phase for ammoxidation.

催化活性相主要是具有钙钛矿结构的组分.

Strontium titanate with perovskite structure is a kind of new functional material.

钛酸锶是一种具有钙钛矿结构的新型功能材料。

The effects of preparation methods and calcination temperature on perovskite structure were characterized by X-ray diffraction ( XRD) and temperature programmed reduction ( TPR).

用X-射线衍射（XRD）和程序升温还原（TPR）技术考察了制备方法和灼烧温度对钙钛矿型结构形成的影响。