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Testing the Debye Function Approach on a Laboratory X-ray Powder Diffraction Equipment. A Critical Study.

Published online by Cambridge University Press:  14 November 2013

Ruggero Frison ,
Antonio Cervellino ,
Giuseppe Cernuto ,
Antonietta Guagliardi  and
Norberto Masciocchi
Ruggero Frison
Affiliation:
Istituto di Cristallografia del CNR and To.Sca.Lab, Via Lucini 3, 22100 Como, Italy
Antonio Cervellino
Affiliation:
Swiss Light Source, Paul Scherrer Institut, 5232 Villigen, Switzerland
Giuseppe Cernuto
Affiliation:
Dipartimento di Scienza e Alta Tecnologia, Università dell'Insubria, and To.Sca.Lab, Via Valleggio 11, 22100 Como, Italy
Antonietta Guagliardi*
Affiliation:
Istituto di Cristallografia del CNR and To.Sca.Lab, Via Lucini 3, 22100 Como, Italy
Norberto Masciocchi
Affiliation:
Dipartimento di Scienza e Alta Tecnologia, Università dell'Insubria, and To.Sca.Lab, Via Valleggio 11, 22100 Como, Italy
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Abstract

Total Scattering Methods are nowadays widely used for the characterization of defective and nanosized materials. They commonly rely on highly accurate neutron and synchrotron diffraction data collected at dedicated beamlines. Here, we compare the results obtained on conventional laboratory equipment and synchrotron radiation when adopting the Debye Function Analysis method on a simple nanocrystalline material (a synthetic iron oxide with average particle size near to 10 nm). Such comparison, which includes the cubic lattice parameter, the sample stoichiometry and the microstructural (size-distribution) analyses, highlights the limitations, but also some strengthening points, of dealing with conventional powder diffraction data collections on nanocrystalline materials.

Keywords

Powder diffractiontotal scattering methodsDebye function analysissynchrotron radiationiron oxide

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Type
Technical Articles
Information
Powder Diffraction , Volume 28 , Supplement S2 , September 2013 , pp. S11 - S21
Copyright
Copyright © International Centre for Diffraction Data 2013 

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