Strength loss of basalt-based mineral fibers after thermal desizing / Florian Boutenel in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 30, N° 3-4 (08/2020)  

[article]  inREVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 30, N° 3-4 (08/2020) . - p. 115-122 Titre : Strength loss of basalt-based mineral fibers after thermal desizing Type de document : texte imprimé Auteurs : Florian Boutenel, Auteur ; Gilles Dusserre, Auteur ; Thierry Cutard, Auteur Année de publication : 2020 Article en page(s) : p. 115-122 Note générale : Bibliogr. Langues : Français (fre) Catégories : Désencollage Fibres de basalte -- Propriétés mécaniques Fibres inorganiques Traitement thermique Index. décimale : 668.4 Plastiques, vinyles Résumé : This study investigates the effects of desizing by heat cleaning on tensile properties of basalt-based mineral fibers. Two heat treatments, which lead to a complete removal of the sizing layer, were considered: one at low temperature (350°C) for a long time (10 h) and one at high temperature (600°C) for a short time (35 min). Desizing greatly affects tensile strength. High temperature and short time treatment conditions lead to the most severe strength degradation (66%). SEM micrographs reveal that failure originates from surface defects. Mechanisms responsible for strength loss were investigated by X-ray diffraction analyses, density measurements and differential thermal analyses. Strength degradation is ascribed to sizing layer removal and to thermally activated structural rearrangement of basalt. Note de contenu : - MATERIALS AND METHODS : Raw material - Heat treatment Single fiber tensile tests - Scanning electron microscopy (SEM) X-ray diffraction (XRD) - Differential thermal analysis (DTA) - RESULTS AND DISCUSSION : Effect of desizing on mechanical properties of basalt fibers - Discussion on strength loss mechanisms - Table 1 : Diameters and tensile properties of basalt fibers – before and after desizing - Table 2 : Weibull parameters and Anderson-Darling statistics of basalt fibers – before and after desizing - Table 3 : Fictive temperatures of basalt fibers determined by differential thermal analysis - before and after desizing DOI : https://doi.org/10.18280/rcma.303-401 En ligne : https://www.iieta.org/download/file/fid/39658 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37637 [article]

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