Results 31 to 40 of about 366,434 (291)

Low Temperature Transitional Aluminas: Structure Specifics and Related X-ray Diffraction Features

open access: yesCrystals, 2021
Despite the fact that metastable aluminum oxides are actively used in industry, there is a discrepancy in the literature regarding their crystal structure.
Dmitriy A. Yatsenko   +2 more
doaj   +1 more source

Development of powder diffraction apparatus for small-angle X-ray scattering measurements [PDF]

open access: yes, 2013
A novel type of X-ray collimation system attached to commercial powder diffractometers makes the structural characterization of nanomaterials possible in a wide size range from
Attila Bóta   +7 more
core   +1 more source

The behavior of the lattice parameters in the Bi-Sn-Zn system [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2007
Lattice parameters, coefficients of thermal expansion and mass density were determined by means of X-ray powder diffraction between 30 and 180ºC (or 240ºC - depending on samples' composition).
Braga Helena M.   +2 more
doaj   +1 more source

X-ray powder diffraction of high-absorption materials at the XRD1 beamline off the best conditions: Application to (Gd,Nd)5Si4 compounds

open access: yes, 2016
Representative compounds of the new family of magnetic materials Gd5-xNdxSi4 were analyzed by X-ray diffraction at the XRD1 beamline at LNLS. To reduce X-ray absorption, thin layers of the powder samples were mounted outside the capillaries and measured ...
Carvalho, A. M. G.   +2 more
core   +1 more source

Composition-induced structural phase transitions in the (Ba1xLax)2In2O5+x (0pxp0.6) system [PDF]

open access: yes, 2005
Composition-induced structural phase changes across the high temperature, fast oxide ion conducting (Ba1xLax)2In2O5+x, 0pxp0.6, system have been carefully analysed using hard mode infrared (IR) powder absorption spectroscopy, X-ray powder diffraction and
Carpenter, M.A.   +7 more
core   +2 more sources

Controlled Synthesis of Carbon-Encapsulated Copper Nanostructures by Using Smectite Clays as Nanotemplates [PDF]

open access: yes, 2012
Rhomboidal and spherical metallic-copper nanostructures were encapsulated within well-formed graphitic shells by using a simple chemical method that involved the catalytic decomposition of acetylene over a copper catalyst that was supported on different ...
Bird   +47 more
core   +8 more sources

New triple molybdate and tungstate Na5Rb7Sc2(XO4)9 (X = Mo, W)

open access: yesChimica Techno Acta, 2021
New compounds of the composition Na5Rb7Sc2(XO4)9 (X = Mo, W) were obtained via the ceramic technology. The sequences of chemical transformations occurring during the formation of these compounds were established, and their primary characterization was ...
Tatyana S. Spiridonova   +3 more
doaj   +1 more source

On the diffraction pattern of C60 peapods

open access: yes, 2004
We present detailed calculations of the diffraction pattern of a powder of bundles of C$_{60}$ peapods. The influence of all pertinent structural parameters of the bundles on the diffraction diagram is discussed, which should lead to a better ...
Anglaret   +34 more
core   +2 more sources

New program with new approach for spectral data analysis [PDF]

open access: yes, 2013
This article presents a high-throughput computer program, called EasyDD, for batch processing, analyzing and visualizing of spectral data; particularly those related to the new generation of synchrotron detectors and X-ray powder diffraction applications.
Sochi, Taha
core   +3 more sources

Carbonate Formation in Non-Aqueous Environments by Solid-Gas Carbonation of Silicates

open access: yes, 2012
We have produced synthetic analogues of cosmic silicates using the Sol Gel method, producing amorphous silicates of composition Mg(x)Ca(1-x)SiO3. Using synchrotron X-ray powder diffraction on Beamline I11 at the Diamond Light Source, together with a ...
Day, S. J.   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy