Surface morphology of recovered basalt fibers at different temperatures

Surface morphology of recovered basalt fibers at different temperatures The surface morphology of basalt fibers, recovered by pyrogasification process at different temperatures (450, 500 and 550 °C) were characterized by SEM. The starting material is a basalt prepreg impregnated with thermosetting matrix. Basalt fibers after pyrogasification at 450 °C Basalt fibers after pyrogasification at 500 °C Basalt fibers after pyrogasification at 550 °C