School of Materials Science and Engineering, Central South University, Changsha 410083, China;
School of Materials Science and Engineering, Central South University, Changsha 410083, China;
School of Materials Science and Engineering, Central South University, Changsha 410083, China;
School of Materials Science and Engineering, Central South University, Changsha 410083, China;
School of Materials Science and Engineering, Central South University, Changsha 410083, China;
School of Materials Science and Engineering, Central South University, Changsha 410083, China;
hydrogen-fired expansion; free oxygen; dispersion strengthen; Cu-Al2O3 alloy;