Bentayeb, A. and Amouric, M. and Olives, J. and Dekayir, A. and Nadiri, A. (2003) XRD and HRTEM characterization of pyrophyllite from Morocco and its possible applications. Applied Clay Science, 22 (5). pp. 211-221.

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Abstract

Samples of pyrophyllite material from a deposit in south Morocco were characterized in order to assess their possible applications. X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) coupled with energy dispersive X-ray microanalysis (EDX) techniques have been used for qualitative and quantitative phase identification and for crystal symmetry determination of pyrophyllite. The raw material mainly consists of pyrophyllite, quartz and mica-like. Pyrophyllite and mica-like are homogeneous phases, with respective compositions Si4(Al1.92Mg0.12) O10(OH)2 and K0.85(Si3.25Al0.75)(Al1.9 Mg0.1)O10(OH)2. They show a good crystallinity, a lack of structural defects and occur as stable polytypes, namely, 1Tc for pyrophyllite and 2M1 for mica-like. Analytical results revealed the potential use of this pyrophyllite-rich material, particularly to produce fibre-glass. © 2003 Elsevier Science B.V. All rights reserved.

Item Type: Article
Uncontrolled Keywords: Composite materials; Crystal defects; Energy dispersive spectroscopy; Glass fibers; Transmission electron microscopy; X ray diffraction analysis, High-resolution transmission electron microscopy (HRTEM), Materials science, clay mineral; crystal chemistry; crystal structure; pyrophyllite; transmission electron microscopy; X-ray diffraction, Morocco
Subjects: Earth and Planetary Sciences
Divisions: SCIENTIFIC PRODUCTION > Earth and Planetary Sciences
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:46
URI: http://eprints.umi.ac.ma/id/eprint/2957

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