Results 11 to 20 of about 18,381 (288)
Mineralogical characterization of a highly-weathered soil by the Rietveld Method Caracterização mineralógica de um solo altamente intemperizado pelo Método de Rietveld [PDF]
The mineralogical characterization through mineral quantification of Brazilian soils by X-ray diffraction data using the Rietveld Method is not common.
André Maurício Brinatti +4 more
doaj +2 more sources
Application of the Rietveld method to the analysis of anhydrous cement [PDF]
X-ray powder diffraction allows direct measurement of the phase content in cement. More recently, whole pattern approaches such as the Rietveld method show an improvement in both within (repeatability) and between laboratory (reproducibility) precision.
Le Saoût, Gwenn +2 more
core +4 more sources
Analysis of Rietveld Method Application for Gyrolite Crystal Structure Refinement
The several simulated X-ray diffraction patterns for calcium silicate hydrate – gyrolite were calculated with GSAS program using the structural model of natural mineral gyrolite and profile parameters values determined from refining crystal structure of ...
Arūnas BALTUŠNIKAS +5 more
doaj +2 more sources
This research presents the use of the Rietveld method to study the phase composition of cordierite (MG2AL4SI5O18) ceramics prepared from rice husk silica, after the samples were sintered at 1300, 1400 and 1500 °C.
Simon Sembiring
doaj +3 more sources
Study of Constitutive Behavior of Ferroelectrics via Self-Consistent Modeling and Neutron Diffraction [PDF]
The central goal of this study is to develop a reliable self-consistent model to describe the constitutive behavior of polycrystalline ferroelectrics and to predict their lattice strain and texture evolution. Starting with the model developed by Huber et
Motahari, Seyed-Maziar
core +1 more source
Synthesis, Structure, and Luminescent Properties of the New Double Borate K3Eu3B4O12
The study established the formation of the new double borate K3Eu3B4O12. The Rietveld refi nement of the crystal structure revealed that K3Eu3B4O12 crystallises in the monoclinic syngony with unit cell parameters a = 10.6727(7) Å, b = 8.9086(6) Å, c = 13.
Evgeniy V. Kovtunets +2 more
doaj +1 more source
Photoactivity of titanium dioxide (TiO2) can be improved by turning it into nanoparticles. Synthesis of TiO2 nanoparticles can be done by using hydrothermal method.
Mohammad Rofik Usman +2 more
doaj +1 more source
Determination of metallization degree of pre-reduced chromite with image and rietveld analysis [PDF]
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
TiB2-Cu cermets with various volume fractions of copper (from 3 to 30 vol. %) were produced via liquid phase sintering at the temperature range 1100–1200 °C in vacuum using spark plasma sintering (SPS) technique.
Marta Ziemnicka-Sylwester
doaj +1 more source
Structural Characterization of the Hot-rolled Ti-25Ta-xZr Alloys by Rietveld Method
This paper aims to analyze the structure of the Ti-25Ta-xZr system alloys (x = 0, 10, 20, 30, and 40% wt.) after melting and hot-rolling by Rietveld's technique.
Pedro Akira Bazaglia Kuroda +2 more
doaj +1 more source

