Results 31 to 40 of about 367,327 (292)

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

Journal 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., Ferreira J., Malheiros L.F.   +2 more
doaj   +1 more source

Tinaksite and Tokkoite: X-ray Powder Diffraction, Optical, and Vibrational Properties

Crystals, 2022
In this study, natural tinaksite (K2Ca2NaTi[Si7O18OH]O) and tokkoite (K2Ca4[Si7O18OH](OH,F)) collected in charoite rocks of the Murun alkaline massif (Siberia, Russia) were examined by X-ray diffraction and optical and vibrational spectroscopic methods ...
Ekaterina Kaneva, Roman Shendrik
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

, 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., Coelho, A. A., Nunes, R. S.   +2 more
core   +1 more source

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

, 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., Liu, Yun, Moussaoui, Saïd, Pring, Allan, Tarantino, Serena C., Tenailleau, Christophe, Withers, Ray L., Zhang, Ming   +7 more
core   +2 more sources

On the diffraction pattern of C60 peapods

, 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, Bendiab, Bendiab, Forró, Fujiwara, H. Kataura, Henrard, Hirahara, Hornbaker, Iijima, J. Cambedouzou, Johnson, Kataura, Kataura, Kim, Kuzmany, Launois, Lee, Liu, Maniwa, P. Launois, P. Petit, Pichler, R. Almairac, R. Klement, Rao, Rochefort, Rols, S. Rols, Smith, Sundqvist, Thess, V. Pichot, Vavro, Zhou   +34 more
core   +2 more sources

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

, 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

Parts per Million Powder X-ray Diffraction [PDF]

Analytical Chemistry, 2015
Here we demonstrate the use of second harmonic generation (SHG) microscopy-guided synchrotron powder X-ray diffraction (PXRD) for the detection of trace crystalline active pharmaceutical ingredients in a common polymer blend. The combined instrument is capable of detecting 100 ppm crystalline ritonavir in an amorphous hydroxypropyl methylcellulose ...
Justin A, Newman, Paul D, Schmitt, Scott J, Toth, Fengyuan, Deng, Shijie, Zhang, Garth J, Simpson   +5 more
openaire   +2 more sources

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

Chimica 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, Aleksandra A. Savina, Evgeniy V. Kovtunets, Elena G. Khaikina   +3 more
doaj   +1 more source

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

, 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., Evans, A., Parker, J. E., Thompson, S. P.   +3 more
core   +1 more source

Synthesis and characterization of La_0.8Sr_1.2Co_0.5M_0.5O_4-? (M=Fe, Mn) [PDF]

, 2009
The M4+-containing K2NiF4-type phases La0.8Sr1.2Co0.5Fe0.5O4 and La0.8Sr1.2Co0.5Mn0.5O4 have been synthesized by a sol-gel procedure and characterized by X-ray powder diffraction, thermal analysis, neutron powder diffraction and Mössbauer spectroscopy ...
Bowman, Bréard, Bull, C. Greaves, Dann, El Shinawi, F.J. Berry, H. El Shinawi, Hayward, Hector, Hill, J.F. Marco, Karen, Labbe, Larson, Prado, Rao, Sears, Skinner, Vashook   +19 more
core   +1 more source