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Title

Development of crystalline phases in sintered glass-ceramics from residual E-glass fibres

AuthorsMartín, María Isabel; López Gómez, Félix Antonio; Alguacil, Francisco José; Romero, Maximina
KeywordsWaste valorization
Vitrification
Sintering
Glass-ceramics
Microstructure
Issue Date2014
PublisherElsevier
CitationCeramics International, 40 (2014) 2769-2776
AbstractThe crystalline phase evolution during firing of glass-ceramic materials from residual E-glass fibres was investigated as a function of temperature and time. The thermal stability and crystallisation mechanism were studied by differential scanning calorimetry (DSC). The mineralogical and microstructural characterisation of the sintered glass-ceramics was carried out by X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM), respectively. The crystallisation behaviour was depicted by the TTT (Time-Temperature-Transformation) curve. The activation energies for crystallisation were calculated by the Friedman differential isoconversional method. The results show that devitrification of the glass leads to a series of glass-ceramic materials composed of wollastonite and plagioclase s.s. Their microstructure is composed of a dense network of crystals, which is responsible for the high mechanical properties exhibited by these materials.
Publisher version (URL)http://dx.doi.org/10.1016/j.ceramint.2013.10.040
URIhttp://hdl.handle.net/10261/88551
DOI10.1016/j.ceramint.2013.10.040
ISSN0272-8842
Appears in Collections:(IETCC) Artículos
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