Results 61 to 70 of about 33,137,902 (193)

Determination the crystallographic information of hexagonal magnesium via X-ray diffraction profiles

open access: yesJournal of Alloys and Metallurgical Systems
Researching the crystallographic information is imperative in hexagonal magnesium. In this paper, the comparative evaluation on the crystallite size and shape, strain and texture are carried with semi-quantitively techniques, such as Williamson-hall ...
Yanlian Liu   +3 more
doaj   +1 more source

Structural and microstructural characterization of tin(II) oxide useful as anode material in lithium rechargeable batteries obtained from a different synthesis route at room temperature

open access: yesMaterials Research, 2011
Tin (II) oxide has been proposed as potential anode material in lithium rechargeable batteries. Different methods to obtain such compound have been developed with relative difficulty due to the fact that Sn(II) is easily oxidized to Sn(IV).
Mario Alberto Macías   +6 more
doaj  

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

Quantitative Analysis of Aluminum Dross by the Rietveld Method

open access: yesMATERIALS TRANSACTIONS, 2008
Aluminum white dross is a valuable material principally due to its high metallic aluminum content. The aim of this work is to develop a method for quantitative analysis of aluminum white dross with high accuracy. Initially, the material was separated into four granulometric fractions by means of screening.
Gómez, A.   +2 more
openaire   +2 more sources

Effect of the Addition of Potassium or Lithium on the Columbite Precursor Microstructure

open access: yesMaterials Research, 2002
Pechini method has been used to synthesize MN powders with stoichiometric control. By this method, K and Li-doped MN in the range from 0.1 to 5.0 mol% of dopants have been obtained at relatively lower temperatures than it is possible with the ...
Alberto A. Cavalheiro   +3 more
doaj   +1 more source

A Reitveld quantitative XRD phase-analysis of selected composition of the Sr(0.5+x)Sb(1−x)Fe(1+x)(PO4)3(0 < x < 0.50) system

open access: yesMATEC Web of Conferences, 2013
Qualitative XRD phase-analysis of four (x = 0.10, 0.20, 0.30, 0.40) selected compositions of the Sr(0.5+x)Sb(1−x)Fe(1+x)(PO4)3(0 < x < 0.50) system was undertaken. XRD data shows the absence of a continuously solid solution.
Aatiq A.   +4 more
doaj   +1 more source

Microstructure Characterization of Nanocrystalline Magnesium Ferrite Annealed at Elevated Temperatures by Rietveld Method

open access: yes, 2011
Nanocrystalline magnesium ferrite is synthesized at room temperature by high energy ball milling the MgO and α-Fe2O3 (1 : 1 mol fraction) powders. The Rietveld structure and microstructure refinements of X-ray powder diffraction data of 9 h milled sample
S. K. Pradhan, S. Sain, H. Dutta
semanticscholar   +1 more source

The Rietveld method – an alternative approach [PDF]

open access: yesActa Crystallographica Section A Foundations of Crystallography, 1987
G. B. Mitra, P. Das Gupta
openaire   +1 more source

Kinetics of Thermal Transformation of Synthetic Al-Maghemites into Al-Hematites

open access: yesRevista Brasileira de Ciência do Solo
Maghemite (γ-Fe2O3) and hematite (α-Fe2O3) are important iron oxides in Brazilian soils derived from basalt. Maghemite can transform into hematite when exposed to high temperatures. However, isomorphic substitution (e.g., Al3+) may largely influence this
Adriele Galeti Nonaka   +5 more
doaj   +1 more source

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