Grain size effect on the phase transformations of higher manganese silicide thermoelectric materials: An in situ energy dispersive x-ray diffraction study

2011 ◽  
Vol 26 (15) ◽  
pp. 1900-1906 ◽  
Author(s):  
Aijun Zhou ◽  
Tiejun Zhu ◽  
Xinbing Zhao ◽  
Eckhard Mueller
Keyword(s):  
Grain Size ◽  
Size Effect ◽  
Diffraction Study ◽  
Thermoelectric Materials ◽  
Grain Size Effect ◽  
X Ray Diffraction ◽  
X Ray ◽  
Manganese Silicide ◽  
Image Position

Abstract

Heterogeneity Effects in X-Ray Analysis*

1961 ◽  
Vol 5 ◽  
pp. 335-354 ◽  
Author(s):  
Fernand Claisse ◽  
Claude Samson
Keyword(s):  
Grain Size ◽  
Size Effect ◽  
Mathematical Treatment ◽  
Grain Size Effect ◽  
Light Elements ◽  
X Ray Diffraction ◽  
Limited Region ◽  
X Ray ◽  
Grain Sizes ◽  
Heterogeneity Effects

AbstractA fundamental quantitative treatment of the heterogeneity effects in X-ray fluorescence has been made. The theory predicts that the grain-size effect appears only in a limited region of grain sizes which depends on the wavelength of the primary radiation and the nature of the compounds in the mixture. With monochromatic radiation, the fluorescence intensity showed increase or decrease by a factor of a few units as grain size is decreased, A factor as large as 12, the theoretical value, has been observed in one particular experiment. Usually the grain-size effect can be eliminated by intensive grinding. For the light elements fine grinding is disastrous if long wavelengths are used. By an appropriate choice of the wavelength it is possible to eliminate the effect even without grinding. The mathematical treatment also predicts, but less rigorously, a grain-size effect in X-ray diffraction.The effect on the fluorescence intensities by changes in the chemical composition of the grains that contain the fluorescent element is predicted by the theory.These findings are discussed in relation to the analysis of elements when polychromatic beams are used.

scholarly journals In situ energy dispersive X-ray diffraction study of iron disilicide thermoelectric materials

2008 ◽  
Vol 69 (8) ◽  
pp. 2013-2018 ◽  
Author(s):  
H.Y. Chen ◽  
X.B. Zhao ◽  
T.J. Zhu ◽  
J.Z. Jiang ◽  
C. Stiewe ◽  
...  
Keyword(s):  
Diffraction Study ◽  
Thermoelectric Materials ◽  
Energy Dispersive ◽  
X Ray Diffraction ◽  
Iron Disilicide ◽  
X Ray

Thermal expansion of nano–boron carbide under constant DC electric field: An in situ energy dispersive X-ray diffraction study using a synchrotron probe

2020 ◽  
Vol 35 (1) ◽  
pp. 90-97
Author(s):  
Hülya Biçer ◽  
Enver Koray Akdoğan ◽  
İlyas Şavklıyıldız ◽  
Christopher Haines ◽  
Zhong Zhong ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Electric Field ◽  
Boron Carbide ◽  
Diffraction Study ◽  
Energy Dispersive ◽  
X Ray Diffraction ◽  
X Ray ◽  
Dc Electric Field ◽  
Image Position

Abstract

In situ time resolved wide angle X-ray diffraction study of nanotube carpet growth: Nature of catalyst particles and progressive nanotube alignment

Carbon ◽  
2015 ◽  
Vol 87 ◽  
pp. 246-256 ◽  
Author(s):  
Périne Landois ◽  
Mathieu Pinault ◽  
Stéphan Rouzière ◽  
Dominique Porterat ◽  
Cristian Mocuta ◽  
...  
Keyword(s):  
Diffraction Study ◽  
Wide Angle ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray

Structural evolution of NASICON-type Li1+xAlxGe2−x(PO4)3 using in situ synchrotron X-ray powder diffraction

2016 ◽  
Vol 4 (20) ◽  
pp. 7718-7726 ◽  
Author(s):  
Dorsasadat Safanama ◽  
Neeraj Sharma ◽  
Rayavarapu Prasada Rao ◽  
Helen E. A. Brand ◽  
Stefan Adams
Keyword(s):  
Solid Electrolyte ◽  
Diffraction Study ◽  
Powder Diffraction ◽  
Structural Evolution ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nasicon Type ◽  
Precursor Glass

In situ synchrotron X-ray diffraction study of the synthesis of solid-electrolyte Li1+xAlxGe2−x(PO4)3 (LAGP) from the precursor glass reveals that an initially crystallized dopant poor phase transforms into the Al-doped LAGP at 800 °C.

In situ X-ray diffraction study of chrysotile at high P–T conditions: transformation to the 3.65 Å phase

2021 ◽  
Vol 48 (10) ◽  
Author(s):  
Sergey V. Goryainov ◽  
John S. Tse ◽  
Serge Desgreniers ◽  
Saori I. Kawaguchi ◽  
Yuanming Pan ◽  
...  
Keyword(s):  
Diffraction Study ◽  
X Ray Diffraction ◽  
X Ray

Reaction pathways of iron-sulfide mineral formation: an in situ X-ray diffraction study

2018 ◽  
Vol 30 (1) ◽  
pp. 77-84 ◽  
Author(s):  
Min-Yu Lin ◽  
Yen-Hua Chen ◽  
Jey-Jau Lee ◽  
Hwo-Shuenn Sheu
Keyword(s):  
Diffraction Study ◽  
Iron Sulfide ◽  
Sulfide Mineral ◽  
Reaction Pathways ◽  
Mineral Formation ◽  
X Ray Diffraction ◽  
X Ray
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