The purpose of this study is to develop adhesive materials for joining different kinds of materials such as FRP and metals, and to decompose the bonding structures conveniently. As the first step, we proposed the adhesive with epoxy and ceramics particles (SiC) for a GFRP joint, and tried to decompose it by microwave irradiation. A tensile shear test of GFRP joints with the proposed adhesive was carried out with/without microwave irradiation, and effects of the volume fraction of SiC particles on the adhesive strength were investigated. As the results, it was obvious that the optimum amount of volume fraction of SiC existed to satisfy the high strength before irradiation and low strength after irradiation. Furthermore, the strength could be decreased by one irradiation and the repeat of irradiation was not necessary, and the fracture surfaces were different caused by the volume fraction of SiC particles and the effect of microwave irradiation.
