Kinetics of the Decomposition of Crocidolite Asbestos: A Preliminary Real-Time X-Ray Powder Diffraction Study

A.F. Gualtieri; D. Levy; M. Dapiaggi; E. Belluso

doi:10.4028/www.scientific.net/MSF.443-444.291

Paper Titles

Structure Relations and XRD Patterns of the Disorder-Order Transition of Metastable RE₂TM₁₇ Alloys
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Neutron and X-Ray Diffraction Studies of Piezoelectric Materials under Non-Ambient Conditions
p.277

Synthesis and Characterization of Al, Y, Co and Cr Substituted Ultrafine Powder of NiFe₂O₄
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Order-Disorder Phase Transition in NaBD₄
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Kinetics of the Decomposition of Crocidolite Asbestos: A Preliminary Real-Time X-Ray Powder Diffraction Study
p.291

Sorbate Rearrangement and Cation Migration in HFC-134 Loaded NaY Zeolite: a Temperature Dependent Synchrotron Powder Diffraction Study
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Kinetical Investigations on Lamellar CalciumAluminateChromateHydrates with High Speed Detector
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Features of Crystal Structure and Ferroelectric Phase Transitions of KTiOPO₄ Doped with Nb and Sb
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Synthesis, Properties and Characterisation of Manganeous Layered Double Hydroxides Using In Situ X-Ray Techniques
p.307

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Kinetics of the Decomposition of Crocidolite Asbestos: A Preliminary Real-Time X-Ray Powder Diffraction Study

Abstract:

This work is a preliminary kinetic study of the crocidolite decomposition followed in situ at high temperature using real time conventional powder diffraction and DTA in the temperature range 720-795 °C. The data analysis using the Avrami models indicates that the rate limiting step of the reaction is monodimensional ion diffusion (n=0.5) with an activation energy of 129 (10)kcal/mole.