Effects of the sintering temperature of whisker with SnO₂·Bi₂O₃ coatings on the damping behavior in Al₁₈B₄O₃₃w/Al composite

Sn and Bi were together introduced at the interface in Al₁₈B₄O₃₃w/Al composite during the fabrication process. The sintering temperature of Al₁₈B₄O₃₃ whiskers with coatings strongly influences the coating structure at the surface of whiskers, resulting in a change in damping properties of the Al₁₈B₄O₃₃w/Al composites with coated whiskers. There exists one obvious damping peak in the composites with two different sintering temperature of whisker preform, and yet the height and temperature of the peak in both of the composites are very different, indicating that the damping mechanisms of both of the composites are completely different.