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X-ray Diffraction Line Broadening on Vibrating Dry-Milled Two Crows Sepiolite

Published online by Cambridge University Press:  01 January 2024

Joaquin Bastida ,
Marek A. Kojdecki ,
Pablo Pardo  and
Pedro Amorós
Joaquin Bastida*
Affiliation:
Departemento de Geología, Universidad de Valencia, 46100 Burjasot, Valencia, Spain
Marek A. Kojdecki
Affiliation:
Instytut Matematyki i Kryptologii, Wojskowa Akademia Techniczna, 00-908, Warszawa, Poland
Pablo Pardo
Affiliation:
Departemento de Geología, Universidad de Valencia, 46100 Burjasot, Valencia, Spain
Pedro Amorós
Affiliation:
Instituto de Ciencia de Materiales, Universidad de Valencia, 46071 Paterna, Valencia, Spain
*
*E-mail address of corresponding author: bastida@uv.es
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Abstract

A reference sample of sepiolite and products of its comminution by vibrating dry-milling have been studied using X-ray diffraction (XRD) line-broadening analysis, complementary field emission scanning electron microscopy (FESEM) images and surface area measurements. The apparent crystallite sizes determined via XRD are in agreement with observations on FESEM images. The sepiolite aggregates consist of lath-shaped agglutinations of prisms and pinacoids elongated along [001], each lath including several crystallites in that direction. The surface area magnitudes are in the range of previous experimental measurements of other sepiolites. The results obtained show the effectiveness of vibro-milling as the procedure to use for the comminution of sepiolite.

Keywords

Crystallite SizeCrystalline Lattice StrainLine BroadeningNevada SepioliteReference ClaySepioliteSurface AreaX-ray Diffraction
Type
Research Article
Information
Clays and Clay Minerals , Volume 54 , Issue 3 , June 2006 , pp. 390 - 401
Copyright
Copyright © 2006, The Clay Minerals Society

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