Results 1 to 10 of about 17,786 (291)

Crystal structure of Na2HfSi2O7 by Rietveld refinement [PDF]

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
The structure of triclinic disodium hafnium disilicate, Na2HfSi2O7, has been determined by laboratory powder X-ray diffraction and refined by the Rietveld refinement.
Nicolas Massoni, Pierrick Chevreux
doaj   +4 more sources

Rietveld refinement of the langbeinite-type phosphate K2Ni0.5Hf1.5(PO4)3 [PDF]

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2020
Polycrystalline potassium nickel(II) hafnium(IV) tris(orthophosphate), a langbeinite-type phosphate, was synthesized by a solid-state method. The three-dimensional framework of the title compound is built up from two types of [MO6] octahedra [the M sites
Liang Zhou   +4 more
doaj   +2 more sources

Rietveld refinement of Y2GeO5 [PDF]

open access: yesActa Crystallographica Section E, 2009
Y2GeO5 (yttrium germanium pentaoxide) was synthesized by solid-state reaction at 1443 K. The arrangement, which has monoclinic symmetry, is isostructural with Dy2GeO5 and presents two independent sites for the Y atoms.
Lauro Bucio   +1 more
doaj   +3 more sources

Rietveld refinement of the crystal structures of Rb2XSi5O12 (X = Ni, Mn) [PDF]

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
The synthetic leucite silicate framework mineral analogues Rb2XSi5O12 {X = Ni [dirubidium nickel(II) pentasilicate] and Mn [dirubidium manganese(II) pentasilicate]} have been prepared by high-temperature solid-state synthesis.
Anthony M. T. Bell   +1 more
doaj   +2 more sources

Reinvestigation of the crystal structure of Ca2Ce8(SiO4)6O2 apatite by Rietveld refinement [PDF]

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2018
Ca2Ln8(SiO4)6O2 apatites with Ln = La, Ce, Pr, Nd, Sm, Eu, Gd and Tb crystallize in space group P63/m. The crystal structure of apatite-type Ca2Ce8(SiO4)6O2 [dicalcium octacerium hexakis(silicate) dioxide], which has been synthesized by calcination, was ...
Nicolas Massoni   +2 more
doaj   +2 more sources

Rietveld refinement of whitlockite-related K0.8Ca9.8Fe0.2(PO4)7

open access: yesActa Crystallographica Section E, 2010
The title compound, K0.8Ca9.8Fe0.2(PO4)7 (potassium decacalcium iron heptaphosphate), belongs to the whitlockite family. The structure is built up from several types of metal–oxygen polyhedra: two [CaO8], one [CaO7] and one [(Ca/Fe)O6 ...
Igor V. Zatovsky   +4 more
doaj   +1 more source

Synthesis of CuO and Ce-doped CuO nanosheets; characterization, optical and magnetic properties [PDF]

open access: yesProgress in Physics of Applied Materials, 2023
In this article, the structural, magnetic, and optical properties of CuO doped by cerium metal ions as a rare earth element synthesized by the hydrothermal method have been investigated.
Hasan Khaleghi
doaj   +1 more source

Inter-comparison of lattice parameters and evaluation of peak-shift obtained by Rietveld refinements

open access: yesResults in Physics, 2019
This paper addresses the disparity that exists among different estimations of the structural parameters obtained from an identical structure using the Rietveld refinement.
Masami Tsubota   +2 more
doaj   +1 more source

Rietveld refinement of langbeinite-type K2YHf(PO4)3

open access: yesActa Crystallographica Section E, 2009
Potassium yttrium hafnium tris(orthophosphate) belongs to the langbeinite-family and is built up from [MO6] octahedra [in which the positions of the two independent M sites are mutually occupied by Y and Hf in a 0.605 (10):0.395 (10 ...
Nikolay S. Slobodyanik   +2 more
doaj   +1 more source

The Effect of Skelp Thickness on Precipitate Size and Morphology for X70 Microalloyed Steel Using Rietveld Refinement (Quantitative X-ray Diffraction)

open access: yesCrystals, 2018
Precipitates in thin-walled (11 mm) and thick-walled X70 (17 mm) microalloyed X70 pipe steel are characterized using Rietveld refinement (a.k.a. quantitative X-ray diffraction (QXRD)), inductively coupled plasma mass spectrometry (ICP), and energy ...
Corentin Chatelier   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy