Results 31 to 40 of about 712 (189)

The complex oxides with octahedral structures: Existence areas and phase transitions [PDF]

open access: yesJournal of Advanced Dielectrics, 2020
The experimental and calculated data on the existence of complex oxides in solid state with the octahedral structures of four families, namely perovskites, Bi-containing layered perovskite-like ones, tetragonal tungsten bronzes and pyrochlores, and about
G. A. Geguzina
doaj   +1 more source

Relaxor nature in lead-free Sr5LaTi3Nb7O30 tetragonal tungsten bronze ceramics [PDF]

open access: yes, 2013
Lead-free tetragonal tungsten bronze Sr5LaTi3Nb7O30 ceramics were prepared and the correlation of the relaxor nature and crystal structure was studied using dielectric spectroscopy and powder X-ray diffraction.
Li, Kun   +9 more
core   +1 more source

Tetragonal tungsten bronze/barium hexaferrite room-temperature multiferroic composite ceramics

open access: yes, 2020
The spontaneously formed multiferroic composite based on tetragonal tungsten bronze structure was successfully synthesized in the form of ceramics by the solid-state reaction.
HAJLAOUI, Thameur   +4 more
core   +1 more source

Structural origins of dielectric anomalies in the filled tetragonal tungsten bronze Sr2NaNb5O15 - Data Upload

open access: yes, 2023
PXRD data collected at Taiwan Photon Source (TPS) and Diamond Light Source (DLS) relating to the refinements discussed in the npj Communications Materials manuscript, Structural origins of dielectric anomalies in the filled tetragonal tungsten bronze ...
Ana M. Sanchez (15208179)   +9 more
core   +1 more source

Lattice Constants of Tetragonal Sodium Potassium Tungsten Bronzes [PDF]

open access: yesBulletin of the Chemical Society of Japan, 1970
Abstract Sodium potassium tungsten bronzes, NaxKyWO3, having various values of x and y were prepared by electrolytically treating a fused mixture of carbonates of the two alkali metals and tungsten-(VI) oxide. Lattice constants, a and c, of the tetragonal crystals were estimated by the X-ray powder method.
Seiichiro Utsumi, Shuko Fujieda
openaire   +1 more source

Vogel-Fulcher analysis of relaxor dielectrics with the tetragonal tungsten bronze structure : Ba6MNb9O30 (M = Ga, Sc, In)

open access: yes, 2015
In-depth analysis of the relaxor behaviour of Ba6MNb9O30 (M= Ga, Sc, In) tetragonal tungsten bronze (TTB) ceramics was carried out. Powder x-ray diffraction and scanning electron microscopy were performed in order to confirm the formation of desired ...
Morrison, Finlay D., Rotaru, Andrei
core   +1 more source

Structure and thermal expansion of the tungsten bronze Pb2KNb5O15

open access: yes, 2014
The structure and thermal expansion behavior of the tetragonal tungsten bronze oxide Pb2KNb5O15 were investigated by neutron powder diffraction and high-temperature X-ray diffraction.
Deng, Jinxia   +9 more
core   +1 more source

Theory and application of the vector pair correlation function for real-space crystallographic analysis of order/disorder correlations from STEM images

open access: yesAPL Materials, 2021
Deviations of local structure and chemistry from the average crystalline unit cell are increasingly recognized to have a significant influence on the properties of many technologically important materials.
Stephen D. Funni   +5 more
doaj   +1 more source

Nanorods of Potassium Tantalum Niobate Tetragonal Tungsten Bronze Phase Grown by Pulsed Laser Deposition

open access: yes, 2016
K–Ta–Nb–O tetragonal tungsten bronze phase was grown on (11̅02) Al2O3 (R-plane sapphire) by pulsed laser deposition. The microstructure, structure, and chemical composition of the deposit were studied by scanning electron microscopy, X-ray diffraction ...
V. Dorcet (1932799)   +6 more
core   +1 more source

Fabrication, structure and dielectric properties of multilayer heterostructures based on Ba2NdFeNb4O15 and Sr0.6Ba0.4Nb2O6 thin films grown on SrRuO3(001)/MgO(001)

open access: yesJournal of Advanced Dielectrics
By X-ray diffraction and dielectric spectroscopy, the crystal structure, phase composition, and properties of Sr[Formula: see text]Ba[Formula: see text]Nb2O6/Ba2NdFeNb4O[Formula: see text]/Sr[Formula: see text]Ba[Formula: see text]Nb2O6/Ba2NdFeNb4O ...
D. V. Stryukov   +4 more
doaj   +1 more source

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