Results 21 to 30 of about 13,692 (260)

Quantitative Rietveld analysis of hydrated cementitious systems

open access: yesPowder Diffraction, 2006
A study examining the feasibility, and possible necessity, of using transmission data from capillary mounted samples for quantitative analysis of hydrated cement systems was conducted. In order to obtain true quantitative results, the amorphous contents were determined by the addition of an internal standard.
Mitchell, L. D.   +2 more
openaire   +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

Rietveld-Based Quantitative Phase Analysis of Sugars in Confectionery [PDF]

open access: yesFood Analytical Methods, 2018
Sugars are a near-ubiquitous ingredient in food products, yet rising rates of obesity and related illnesses have prompted a drive to reduce their content. The use of amorphous sugars in confectionery may be one way of achieving this by providing a similarly sweet sensation due to increased dissolution rate.
Nicholls, Daniel   +3 more
openaire   +2 more sources

Rietveld and Impedance Analysis of Cold and Hot Rolled Duplex and Lean Duplex Steels for Application in Paper and Pulp Industry [PDF]

open access: yesMaterials Research, 2016
In this study, X-Ray Diffraction (XRD) and Rietveld Refinement were performed to identify and quantify the ferrite and austenite phase of cold and hot rolled duplex stainless steels (UNS S31803) and lean duplex stainless steels (UNS S32304 ...
Luiza Esteves   +3 more
doaj   +2 more sources

Iron ore classification by XRD-Rietveld and cluster analysis

open access: yesGeologia USP. Série Científica, 2016
This study establishes a routine for quantitative phase analysis by X-ray diffraction (XRD-Rietveld) in iron ore samples. Studied samples came from Quadrilátero Ferrífero, Southeastern Brazil, and are mainly composed by hematite, magnetite, goethite ...
Fábio Ramos Dias de Andrade   +2 more
doaj   +1 more source

Rietveld Refinement and X-ray Absorption Study on the Bonding States of Lanthanum-Based Perovskite-Type Oxides La1−xCexCoO3

open access: yesCrystals, 2021
Metal-oxygen bonding of the Ce-doped LaCoO3 system remains largely unexplored despite extensive studies on its magnetic properties. Here, we investigate the structure and local structure of nanoscale La1−xCexCoO3, with x = 0, 0.2, and 0.4, using the ...
Duc-Chau Nguyen   +4 more
doaj   +1 more source

Quantitative Analysis of Mineral Composition of Kyanite by X-ray Diffraction with Rietveld Refinement Method

open access: yesYankuang ceshi, 2019
BACKGROUND The content of minerals in kyanite can be analyzed by chemical phase method, but the analytical process is very tedious. Moreover, the existence of heteromorphism and refractory minerals can affect the accuracy of analysis results. An internal
RAN Jing   +3 more
doaj   +1 more source

Crystallite Size and Microstrain Measurement of Cathode Material after Mechanical Milling using Neutron Diffraction Technique

open access: yesAtom Indonesia, 2010
The measurements of neutron diffraction patterns of commercially product and 10 hour mechanically milled cathode material lithium cobaltites (LiCoO2) have been performed.
A. Fajar   +4 more
doaj   +1 more source

Rietveld quantitative phase analysis of Yeelimite-containing cements [PDF]

open access: yesCement and Concrete Research, 2012
Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
Álvarez-Pinazo, Gema   +7 more
openaire   +3 more sources

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

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