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Influence of Grinding Methods on the 101 X-Ray Powder Diffraction line of α-Quartz

Published online by Cambridge University Press:  10 January 2013

Stefano Battaglia ,
Marco Franzini  and
Leonardo Leoni
Stefano Battaglia
Affiliation:
Institute of Mineral Treatments-C.N.R., Via Bolognola, 7 00138 Rome, Italy
Marco Franzini
Affiliation:
Department of Earth Sciences, University of Pisa, Via S.Maria 53, 56100 Pisa, Italy
Leonardo Leoni
Affiliation:
Department of Earth Sciences, University of Pisa, Via S.Maria 53, 56100 Pisa, Italy
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Abstract

The influence of grinding procedures on the intensity and full-width-half-maximum for the 101 line of the X-ray powder diffraction pattern for α-quartz has been investigated using samples of controlled grain size. Data collected on powders obtained by four dry grinding methods show substantial variations (up to 35%) in the quartz diffraction intensities. These variations are evident in the <5 μm size fractions and are attributed to the creation of different thickness of amorphous silica layers on quartz grains by grinding. This result suggests that optimum grinding conditions should be defined for quantitative X-ray diffraction analysis.

Type
Research Article
Information
Powder Diffraction , Volume 5 , Issue 2 , June 1990 , pp. 101 - 103
Copyright
Copyright © Cambridge University Press 1990

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