Results 11 to 20 of about 9,090 (254)

Determination of metallization degree of pre-reduced chromite with image and rietveld analysis [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2020
Metallization degree of pre-reduced chromite was determined using two methods. The chromite samples were reduced in the solid state by methane-hydrogen gas mixtures.
Leino T., Taskinen P., Eric R.H.
doaj   +1 more source

The Rietveld Refinement in the EXPO Software: A Powerful Tool at the End of the Elaborate Crystal Structure Solution Pathway

open access: yesCrystals, 2018
The Rietveld method is the most reliable and powerful tool for refining crystal structure when powder diffraction data are available. It requires that the structure model to be adjusted is as close as possible to the true structure.
Angela Altomare   +6 more
doaj   +1 more source

Fifty years of Rietveld refinement: Methodology and guidelines in superconductors and functional magnetic nanoadsorbents

open access: yesRevista de Investigación de Física, 2021
The Rietveld refinement method has taken high relevance since its creation. Nowadays, it is an useful tool in many fields of industry, materials science, and technology.
Diego Alberto Flores Cano   +5 more
doaj  

Crystal Structure Refinement of Synthetic Pure Gyrolite

open access: yesMedžiagotyra, 2015
Pure calcium silicate hydrate – gyrolite was prepared under the saturated steam pressure at 473 K temperature in rotating autoclave. The crystal structure of synthetic gyrolite was investigated by X-ray diffraction and refined using Le Bail, Rietveld and
Arūnas Baltušnikas   +5 more
doaj   +1 more source

Synthesis and electrochemical properties of Mn-doped Li2Mn0.1Ti1.9(PO4)3 materials

open access: yesFrontiers in Chemistry, 2023
The hunt for a higher power storage, relatively inexpensive, non-polluting battery technology is currently a pressing issue because of the rapid growth of the worldwide economic and the progressively significant environmental pollution.
Lixia Sun   +4 more
doaj   +1 more source

Refinement of monoclinic ReO2 structure from XRD by Rietveld method [PDF]

open access: yesBrazilian Journal of Physics, 2004
ReO2 presents two crystalline variants, with monoclinic and orthorhombic structures. The former is metastable and irreversibly transforms to an orthorhombic structure above 460 o C. The structure of the latter was determined from studies on monocrystalline samples, whereas for the monoclinic variant there are no single crystals available so far. It was
Corrêa, H.P.S.   +4 more
openaire   +3 more sources

CrVMoO7: MICROWAVE SYNTHESIS AND STRUCTURAL CHARACTERIZATION

open access: yesJournal of the Turkish Chemical Society, Section A: Chemistry, 2018
In this study, microwave synthesis method was operated to obtain CrVMoO7. Structural characterization of the compound was realized by powder X-ray diffraction (XRD) and fourier transform infrared spectrum (FTIR).
Gülşah Çelik Gül
doaj   +1 more source

RIETVELD TEXTURE REFINEMENT ANALYSIS OF LINDE TYPE A ZEOLITE FROM X-RAY DIFFRACTION DATA [PDF]

open access: yesJournal of Engineering Science and Technology, 2018
Rietveld method was used to conduct a texture refinement analysis for Linde type A zeolite prepared by hydrothermal conditions of 100 ºC for 4 h. Material Analysis Using Diffraction software, which is an open access/user-friendly software, was used to ...
SAMA M. AL-JUBOURI   +2 more
doaj  

Investigating phase transition and morphology of Bi-Te thermoelectric system

open access: yesMaterials Today Advances, 2020
The optimization of secondary phase in thermoelectric (TE) materials can help to improve the efficiency of the material. Being a potential candidate for lower temperature TE application, bismuth telluride (Bi2Te3) nanoparticles were synthesized via ...
V. Thakur   +4 more
doaj   +1 more source

Anatase/rutile mass fraction determination in TiO2 nanoparticles using Rietveld refinement aiming applications in water purification

open access: yesLabor & Engenho, 2013
Given the growing demand for sanitation solutions, various techniques of wastewater treatment have been proposed. Among them, we highlight the use of photocatalysts.
Egont Alexandre Schenkel   +4 more
doaj   +1 more source

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