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|Title:||In situ synchrotron powder diffraction study of the thermal decomposition of cement-asbestos: preliminary results||Authors:||Gualtieri, A. F.
Lassinantti Gualtieri, Magdalena
|Issue Date:||2009||Publisher:||Oldenbourg Verlag||Abstract:||The elimination of asbestos-containing materials like cement-asbestos, is an environmental priority. An industrial process for the safe recovery of cement-asbestos slates was recently developed and permits the thermal transformation of asbestos fibres into non-fibrous crystalline phases in a tunnel kiln. Optimisation of the process requires knowledge of the reaction dynamics. Here, time-resolved synchrotron powder diffraction was used to follow the thermal transformation of cement-asbestos. The use of a closed capillary as sample holder allowed to closely resemble the atmospheric conditions found in the industrial reactor. In this preliminary work, we describe the reaction sequence which undergoes cement-asbestos during its thermal decomposition. The excellent time resolution of the collected data allowed the observation of meta-stable phases at non-ambient conditions.||URI:||http://hdl.handle.net/2307/364||ISSN:||0044-2968||DOI:||10.1524/zksu.2009.0052|
|Appears in Collections:||A - Articolo su rivista|
X_Dipartimento di Fisica 'Edoardo Amaldi'
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