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http://hdl.handle.net/2307/364
Title: | In situ synchrotron powder diffraction study of the thermal decomposition of cement-asbestos: preliminary results | Authors: | Gualtieri, A. F. Lassinantti Gualtieri, Magdalena Meneghini, Carlo |
Keywords: | X-ray diffraction Asbestos crystallography thermal decomposition |
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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