نتایج جستجو برای: rietveld refinement method

تعداد نتایج: 1655495  

Journal: :Dalton transactions 2014
Tomasz Grzyb Rafal J Wiglusz Vitali Nagirnyi Aleksei Kotlov Stefan Lis

The structure of gadolinium oxyfluoride nanoparticles was revised. Extensive studies including X-ray diffraction and Rietveld refinement as well as Fourier transform infrared spectroscopy and Raman spectroscopy confirmed the monoclinic P12/c1 crystal structure of Gd4O3F6. Morphological analysis using transmission electron microscopy showed the nanocrystallinity of the materials prepared via the...

Journal: :The Annals of occupational hygiene 2014
Diane Radnoff

Advance Access publication 21 May 2014 may be very difficult to go much <1%, even with the additional use of the Rietveld refinement in X-ray diffraction (LOQ = 0.76%). We are unaware of any method that has been published for the determination of crystalline silica in bulk materials that can measure down to 0.1%. If the laboratory used by Radnoff and Kutz has been able to modify NIOSH 7500 to a...

2015
Ji Hun Park Yeong Ju Lee Jong-Seong Bae Bum-Su Kim Yong Chan Cho Chikako Moriyoshi Yoshihiro Kuroiwa Seunghun Lee Se-Young Jeong

Oxygen vacancy (VO) strongly affects the properties of oxides. In this study, we used X-ray diffraction (XRD) to study changes in the VO concentration as a function of the Co-doping level of ZnO. Rietveld refinement yielded a different result from that determined via X-ray photoelectron spectroscopy (XPS), but additional maximum entropy method (MEM) analysis led it to compensate for the differe...

Journal: :Acta Crystallographica Section E Structure Reports Online 2009

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2008

Journal: :Acta Crystallographica Section E Structure Reports Online 2013

Journal: :Acta Crystallographica Section E Crystallographic Communications 2020

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