Microstructure and properties of pure aluminum prepared by spark plasma sintering Wen Zeng, Weicai Qin, Cheng Gu, Hao Sun, Yilong Ma and Xianlong Cao Metall. Res. Technol., 116 3 (2019) 312 Published online: 10 April 2019 DOI: 10.1051/metal/2018105