Tetragonal structure
DFT Calculation for Elastic Constants of Tetragonal Structure of Crystalline Solids with WIEN2k Code: A New Package (Tetra-elastic)
... the tetragonal structures by using second-order derivative within WIEN2k ...several tetragonal structure compounds whose elastic constants are known experimentally and theoretically were ...
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Controlling the Stereoregularity of Polyacrylonitrile and Its Determination Using Small-Molecule Host Inclusion Compounds
... columnar structure of AN α-CD–IC is a very promising method to reveal the original tacticity of highly stereoregular (~80%) PAN due to the fact that α-CD has a rigid small diameter ...channel structure AN ...
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X-ray diffraction Studies of Cu(II), Zn (II), Mo(II), Fe(II)complexes with Glibenclamide (5-chloro-N-(4-[N-(Cyclohexyl Carbnonyl) sulfamonyl]phenethyl)-2-methoxylbenzamide
... Cu(II), Zn(II) exhibit tetragonal structure were as Mo(II) and Fe(II) complexes exhibit octahedral structure.. The proposed structure of Cu (II), Zn (II), Mo (II) and Fe (II) complexes a[r] ...
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Investigation of a new lead free Bi0 5(Na0 40K0 10)TiO3 (Ba0 7Sr0 3)TiO3 piezoelectric ceramic
... higher tetragonal BST into BNKT at x = ...and tetragonal phases of the BNKT-BST system. As its crystal structure was considered to contain nearly the same amount of coexisting rhombohedral and ...
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Structural and electrical properties of Barium Titanate (BaTiO3) and Neodymium doped BaTiO3 (Ba0.995Nd0.005TiO3)
... ceramics with both tetragonal structure. Some variations in occupancy values were showed due to the replacement of Ba atoms by Nd atoms which indicates that (Ba or Nd) atoms located in the same A-site ...
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Inference of oxygen vacancies in hydrothermal Na0 5Bi0 5TiO3
... the tetragonal structure is at ~305 ° C on heating and tetragonal distortion initially increases with temperature, reaching a maximum at ~400 ° ...and tetragonal structures coexist in the ...
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Preparation and Characterization of SnO2 Nanoparticles
... morphological and optical properties of a SnO2 sample were investigated The XRD pattern of the prepared sample is indexed to the tetragonal structure of SnO2, and the calculated particle size in the range ...
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Effect of Partial substitution of Ag on the Structural and Electrical Properties of High Temperature HgBa2Ca2Cu3O8+δ Superconductor
... showed tetragonal structure with high ratio of Hg-1223 superconductor phase, and, increase of the c-axis lattice constant for the samples doped with Ag as compared with this has no Ag ...
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Martensitic Transformation of Ni2 18Mn0 82Ga Single Crystal Observed by Synchrotron Radiation White X Ray Diffraction
... As shown in Fig. 7(a), all spots are indexed by a tetragonal structure. However, two spots for one index are observed in close proximity as clearly shown in the magnified Fig. 8(a). This fact means that at ...
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Structure–property relationships in (1 − x)BaTiO3–xBiGdO3 ceramics
... the tetragonal distortion, ...a tetragonal structure (space group ), whereas for x ...). Tetragonal and cubic symmetries coexist for x = ...
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Hydrothermal Synthesis, Microstructure and Photoluminescence of Eu3+ Doped Mixed Rare Earth Nano Orthophosphates
... anisotropic structure and is favorable for the crystal growth along a certain direction and form the nanorods or nanowires, while it is contrary to the rare earth phosphate with tetragonal structure ...
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Effect of Crystalline Size on the Structure of Copper Doped Zirconia Nanopaticles Synthesized via Sol-Gel
... and tetragonal phases with a high BET ...both tetragonal and cubic polymorphs ...and tetragonal phases is to reduce the particle size [5, ...and tetragonal structure with a small amount ...
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Growth of nanolaminate structure of tetragonal zirconia by pulsed laser deposition
... (m), tetragonal (t), and cubic (c) at different temperatures in atmospheric ...its tetragonal structure at room temperature, thus avoiding phase transformation from tet- ragonal to monoclinic ...
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Probing the Crystallographic Structure and Dielectric Properties of Doped HfO2 Powder Materials.
... with time during a typical thermal profile seen in calcination processes. Insight into the kinetics of the reaction could further be gained at fixed temperatures by studying the speed of the reaction towards equilibrium ...
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Preparation and Microstructure of Acetate-based Lead-free BSZT Ferroelectric Thin Films Using Sol-gel Technique
... and tetragonal) MPB composition starting at the triple point (tetragonal–cubic– rhombohedral), which results in a very low energy barrier for polarisation rotation and lattice distortion ...
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Cs7Sm11[TeO3]12Cl16 and Rb7Nd11[TeO3]12Br16, the new tellurite halides of the tetragonal Rb6LiNd11[SeO3]12Cl16 structure type
... 23] where all cationic positions in the metal-oxide slabs are filled. It is likely that increase of the metrics when proceeding from Se to Te compounds makes it possible for large cations like Rb + or Cs + to enter cubic ...
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PHASE STRUCTURE, DIELECTRIC AND PIEZOELECTRIC PROPERTIES OF MODIFIED-PZT CERAMICS NEAR THE MORPHOTROPIC PHASE BOUNDARY
... Crystal structure and phases identification of the sintered specimens crushed into powders were carried out by X-ray diffractometers (X Pert Graphics and Simens D500) at room temperature using CuKα ...
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Tetragonal form of barium cobalt disilicate, Ba2CoSi2O7
... sharing corners. These layers, lying parallel to the (001) plane at around x = 0.5, are interconnected by barium ions, as shown in Fig. 1. Alternatively, the structure can be described as being composed of BaO 8 ...
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Phase Transformations Induced by Severe Plastic Deformation
... HPT of silicon and germanium also leads to the formation of metastable high pressure phases. 133,134) In Ref. 135) the single crystalline Si(100) was subjected to HPT at 24 GPa at room temperature. The HPT-processed ...
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Tetragonal modification of 1,1,3,3,5,5 hexamethylcyclo 1,3,5 tristannathiane
... is suggested. This space group is now authenticated in the present study. The two independent Sn atoms in the tetragonal modi®cation exist in tetrahedral geometries; adjacent mol- ecules are linked by an Sn S ...
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