[1] Univ Queensland, Sch Engn, Brisbane, Qld 4072, Australia
[2] Univ Queensland, Ctr Microscopy & Microanal, Brisbane, Qld 4072, Australia
[3] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
[4] Nanjing Univ Technol, Membrane Sci & Technol Res Ctr, Nanjing 210009, Peoples R China
[5] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA
[6] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37886 USA