Figure 13From: Fabrication of Carbon Nanotubes and Rare Earth Pr Reinforced AZ91 Composites by Powder MetallurgySEM micrographs of tensile fracture of the tested alloys: a AZ91-Pr-0.5 TiO2@CNTs, b AZ91-Pr-1.0 TiO2@CNTs, c the magnified images of area B in (b), and d AZ91-Pr-1.5 TiO2@CNTsBack to article page