In this study, the effect of stacking sequence on the flexural and fracture properties of carbon/
basalt/epoxy hybrid composites was investigated. Two types of carbon/basalt/epoxy hybrid
composites with a sandwich form were fabricated: basalt skin-carbon core (BSCC) composites
and carbon skin-basalt core (CSBC) composites. Fracture tests were conducted and the
fracture surfaces of the carbon/basalt/epoxy hybrid composites were then examined using
scanning electron microscopy (SEM). The results showed that the flexural strength and flexural
modulus of the CSBC specimen respectively were ~32% and ~245% greater than those
of the BSCC specimen. However, the interlaminar fracture toughness of the CSBC specimen
was ~10% smaller than that of the BSCC specimen. SEM results on the fracture surface
showed that matrix cracking is a dominant fracture mechanism for the CSBC specimen
while interfacial debonding between fibers and epoxy resin is a dominant fracture process
for the BSCC specimen.