Keywords organic fuel; oxidizer; stoichiometric ratio; solution combustion synthesis; D; L-alanine; composite lanthanum-strontium-cobalt oxides; perovskite structure; catalytic combustion of methane
有机燃料；氧化剂；化学计量比；溶液燃烧法； D； L-丙氨酸；镧-锶-钴复合氧化物；钙钛矿型结构；甲烷催化燃烧
Because the radius of La ion is slightlybigger than that of Bi ion, the unit cell parameterof the perovskite-type layre increases when Bi ionis replaced by La ion. Bi2O2layer and perovskite-type layer no longer match each other and resultsin the structure phase transition.
因为La离子的半径稍微大于Bi离子的半径，用La离子替换Bi离子使赝钙钛矿层的晶格参数增大，Bi2O2层与赝钙钛矿层不再匹配，从而结构发生了变化。
The high activity can be attributed to the following factors: 1 Because of the perovskite structure of the host materials, the positive and negative electric charge center is not superposable, and there is a electric field which can separate the photo generated electrons and holes efficiently in the microscopic field.
以层状基质热稳定性分析为依据，经过对制备方法的优化，在不同温度下进行硫化处理，在对催化剂进行产氢性能研究时发现，在以硫化钠和亚硫酸钠为牺牲剂的产氢体系中，插入硫化镉的复合层状催化剂负载一定量铂以后，具有较高的连续的光催化分解水的能力。
The experimental Raman line wave numbers and the expected shapes for the phonon modes were compared to those reported for other perovskite-like compounds with the Pnma structure and to the results of lattice dynamical calculations.
将声坐标中涡度方程的有关项在2坐标中分离出水平涡度向垂直涡度转化的主要项，经尺度分析得出，在对流层中、高层，这些转化项中的水平分量是大尺度大气斜压性涡度发展的主要因子。
In recent years, there has been considerable interest in CaCu3Ti4O12, a material with a cubic perovskite-related crystal structure because of its peculiar dielectric property.
近年来，立方钙钛酸型相关结构的晶体CaCu3Ti4O12，由於其具有不寻常的高介电常数的性质，引起相当的重视。
Utilizing the photosensitivity, the BST gel films are irradiated by UV light through a pattern mask and leached by alcohol. The fine patterning of BST gel film is thus prepared. After annealing at 600℃, the fine patterning of BST films with perovskite structure and ferroelectric properties can be obtained.
利用这种光感应特性，采用紫外光通过掩膜照射薄膜，然后在乙醇中溶洗，获得了凝胶薄膜的微细图形，进一步通过600℃晶化热处理，最后得到了具有钙钛矿相结构和铁电特性的钛酸锶钡薄膜的微细图形。
Keywords rare-earth orthoferrite; perovskite-type structure; electronic structure; density functional theory
稀土铁氧化物；钙钛矿结构；电子结构；密度泛函理论
The interior elements of Ba, Sr, and Ti are all bonded into perovskite structure, but there is few elemental lead inside of the thin film. The elements`content calculation shows that the Ba and Ti content is a little excess, while Sr content is a little deficiency both on the surface and inside of the thin films. The Pb content is consistent with the stoichiometric proportion inside of the thin films, but there is a little deficiency on the surface.
采用XPS研究了薄膜的元素化学态，发现Ba_(0.2)Pb_(0.2)Sr_(0.6)TiO_3薄膜的表层中有少量的非钙钛矿结构的Ba与Ti；在薄膜内部，Ba、Sr、Ti等金属元素均为单一的钙钛矿结构结合状态；Pb元素在薄膜内部出现了少量单质的化学状态，这与薄膜内部缺氧严重有关。
However, the properties of Ln〓 at A-site will also influence the metal-oxygen band energy of the structure, lattice free volume, and oxygen ion migration energy in perovskite-type oxides, and so impacts its properties as cathode.
但A-位Ln〓离子的性质同样影响结构中金属-氧键的强弱、晶格自由体积以及结构中氧离子的迁移能，从而影响材料的阴极性能。
It should be noted that not only in the complex perovskite like BaO3, (X=Mg, Zn, Co, Ni, Mn: Y=Nb, Ta) but also in the compounds with tungsten bronze structure such as Ba6-3xLn8+2XTi18O54, they are consisted of corner-sharing oxygen octahedra and the ratios of ion in B site to ion in A site are usually larger than one.
值得注意的是业已开发出来的材料不论是复合钙钛矿BaO_3，(X=Mg，Zn，Co，Ni，Mn；Y=Nb，Ta)还是钨青铜结构，它们都是由氧八面体共顶连接，而且氧八面体内、外阳离子比例都等于或略大于1，因此，我们推测在B位与A位阳离子比例略小于1的类钙钛矿结构中极有可能存在具有优良介电性能的新材料。
The results show that LSCF and LSM precursors can be transformed to the pure orthorhombic perovskite structure having been calcined at 900℃ and 1200℃ for 5 h, respectively, and LSCF cathode has a smaller particle size and a bigger specific surface area compared with LSM cathode.
采用氨水沉淀法分别制备La0.6Sr0.4Co0.2Fe0.8O(下标 3-δ)与La0.8Sr0.2MnO(下标 3-δ)两种阴极材料，并用X射线衍射、场发射扫描电子显微镜和比表面积对所制备材料的结构、晶粒大小、形貌及比表面积进行表征。
At first, we will introduce the perovskite structure and fundamental characters of RRAM such as negative differential resistance and forming process.
首先，我们将介绍钙钛矿结构及基本的电阻式记忆体特徵，诸如：负微分电阻及塑造进程。
In the condition of keeping F、K、Na content fixed, To improve slag structure and raise slag melting point and viscosity, MgO content is raised and TiO〓 is added. the main content is as follows:(1) Keeping CaO/SiO〓 fixed, MgO content rises from 10% to 16%, the free running temperature goes up 106℃, the viscosity goe down at bigger than 1425℃, but difference is little; keeping /SiO〓 fixed, MgO content rises from 10% to 16%, the free running temperature rises 87℃, the viscosity rises too; adding TiO〓 to 5%, the free running temperature goes up 98℃, the viscosity rise a little.(2) Powder crystal x ray diffraction and microscopic analysis shows: increasing MgO content, the cuspidine will decreace or even disappear, the monticellite goes up with MgO content rising, keeping /SiO〓 fixed, Akermanite content goes up, for high melting point minerals appear or go up, the free running temperature of the slag bearing F is raised; Adding TiO〓, high melting point mineral—Perovskite forms, it can making other minerals'crystalling fast, it is the reason that TiO〓 raises the free running temperature of the slag bearing F.
2对测定粘度的冷凝渣所进行的X粉晶衍射及显微分析和鉴定表明，增加MgO含量，渣中枪晶石将减少甚至消失，而钙镁橄榄石则随MgO含量增加而增加，在／SiO〓不变时，黄长石含量也有所增加，高熔点矿物的出现和增加，提高了含氟熔渣的熔化性温度；加入TiO〓熔渣中将形成高熔点矿物-钙钛矿，钙钛矿的形成还促使黄长石的结晶，这是TiO〓提高含氟熔渣熔化性温度的根本原因。
The XRD results indicate that the partial substitution of Ce for Sr in SrMnO_3 stabilizes the perovskite-type structure.
XRD结果表明，部分Ce替代Sr能够稳定SrMnO_3的钙钛矿结构。
Our numerical results show that the doping of Co can`t destroy its perovskite structure and BiFe0.75Co0.25O3 keeps the obvious ferroelectricity. The ferromagnetism can be significantly improved since the doping of Co changes the G antiferromagnetic order into the ferromagnetic one. But, the impurity Co weakens the insulativity.
结果表明：Co的掺入不破坏原有的钙钛矿结构，对材料铁电性影响不大；掺杂导致原有的G型反铁磁序发生变化，形成了亚铁磁序的磁结构，材料的铁磁性有了很大提高；然而，Co杂质的掺入使材料的绝缘性有所减弱。
Experimental results show that the high-energy ball milled powders demonstrated a typical perovskite crystalline structure, and the solubility of bismuth oxide in strontium titanate was enhanced.
结果表明，高能球磨过后的粉末为具有钙钛矿结构的SBT固溶体，且SBT陶瓷的固溶度有所提高。
Study on acid digesting titania slag during titanium dioxide production It was identified that calcium titanate of perovskite structure is a highly efficient anticorrosion pigment for paints.
钛渣替代钛矿制备钛白酸解试验研究结果发现具钙钛矿结构的钛酸钙是一种适用于油漆的高效防腐颜料。
After many studies and analysis, the optimum processes were obtained for preparing PLCT (x) nanometer-powders with pure perovskite structure by Sol-Gel technology using inorganic salts and singular metal alkoxide.
采用Sol&Gel制备技术，结合大量的研究和粉体制备技术分析，掌握了利用无机盐原料及单一金属醇盐制备完全钙钛矿结构PLCT（x）纳米粉体的优化工艺。
Distributive region of ferro - and antiferroelectrics with perovskite type structure
钙钛矿型化合物中铁电-反铁电体存在的稳定区域
The application of non-thermal plasma technique (dielectric barrier discharge) and catalytic technique (with La_ (1-x) Sr_xMnO_3 catalysts of perovskite type structure) on diesel engine exhaust was discussed in this paper.
本文对介质阻挡放电低温等离子体技术与La（1-x）SrxMnO3系钙钛矿型复合氧化物催化剂在柴油机尾气排放中的应用进行了研究。