Results 1 to 10 of about 30,542 (206)

Measuring Respirable Crystalline Silica (Quartz) from Powdery Materials through Sedimentation and X-ray Diffractometry [PDF]

open access: yesToxics
When possible, choosing materials with a low quartz content is the most effective and cost-efficient way to prevent the respirable quartz exposure of workers and other end users of powdery products. Therefore, methods are needed to analyze low amounts of
Tapani Tuomi, Jussi Lyyränen
doaj   +2 more sources

Diffractometer for element-specific analysis on local structures using a combination of X-ray fluorescence holography and anomalous X-ray scattering [PDF]

open access: yesJournal of Synchrotron Radiation
To tackle disorder in crystals and short- and intermediate-range order in amorphous materials, such as glass, we developed a carry-in diffractometer to utilise X-ray fluorescence holography (XFH) and anomalous X-ray scattering (AXS), facilitating element-
Hiroo Tajiri   +13 more
doaj   +2 more sources

Influence of local surface plasmon resonance on behavior of polymer-stabilized bimetallic nanoparticles in Suzuki cross-coupling reaction [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2018
This paper is devoted to investigation of the effect of light in the visible spectral range on the activity of mono- (Au, Pd) and bimetallic (Au−Pd) catalysts.
N.A. Nemygina   +5 more
doaj   +1 more source

32-Channel silicon strip detection module for combined X-ray fluorescence spectroscopy and X-ray diffractometry analysis

open access: yesFrontiers in Physics, 2022
A compact detection module for the simultaneous measurement of XRF and XRD in portable analytical applications, in particular in the mining sector, is presented.
Marco Carminati   +14 more
doaj   +1 more source

Modeling of Bohemian and Moravian glass recipes from Gothic to Baroque periods

open access: yesHeritage Science, 2020
The Bohemian historical glasses have been neglected and have not been in focus of Archaeometric studies so far. Potassium-calcium wood ash glasses, produced in Bohemia and Moravia, from the beginning of the 14th century to the first half of the 18th ...
Karolína Pánová   +2 more
doaj   +1 more source

Plasmodynamic synthesis of product based on aluminum in the oxygen atmosphere of a reactor-chamber [PDF]

open access: yes, 2007
In this paper, the possibility is shown to synthesize oxide aluminum using a high-speed electro discharge plasma jet.
Arenas   +14 more
core   +2 more sources

Stabilization of hercynite structure at elevated temperatures by Mg substitution

open access: yesMaterials & Design, 2023
Hercynite, FeAl2O4, is a spinel applied in various fields, including refractory materials or H2 production. FeAl2O4 is unstable at elevated temperatures of 1000 °C in air, decomposing into different forms of alumina and iron oxides. In this work, we show
Ilona Jastrzębska   +2 more
doaj   +1 more source

X-Ray Diffractometry of Low-Mass Samples [PDF]

open access: yesPowder Diffraction, 1987
AbstractThe intensity diffracted by a low-mass sample with negligible absorption may be expressed as It = I∞ (B/2μ*)/G, where I∞ = intensity diffracted by a bulk sample, B = cross section of the primary beam, μ* = mass absorption coefficient, and G = mass of the sample. Measurable intensity may be obtained from samples with less than 1 μg mass.
L. S. Zevin, I. M. Zevin
openaire   +1 more source

Transformation of Ammonium Dicyanamide into Dicyandiamide in the Solid [PDF]

open access: yes, 2002
Ammonium dicyanamide NH4[N(CN)2] was synthesized through aqueous ion exchange. The crystal structure was investigated by single-crystal X-ray diffraction (P21/c, a = 378.67(6) pm, b = 1240.9(3) pm, c = 911.84(14) pm, β = 91.488(18)°, Z = 4).
Höppe, Henning A.   +3 more
core   +1 more source

Understanding Nickel Thin Film crystallization using X-Ray Diffractometry

open access: yesJournal of Applied Sciences and Environmental Management, 2010
Normal, helical and zigzag deposited Ni films were produced by letting a vapour stream of source material impinge on Corning 1737 glass substrates at oblique incidence while rotating the substrate during deposition.
T Otiti, GI Ekosse, TS Sathiaraj
doaj   +1 more source

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