1. Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, P. R. China
2. Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming, P. R. China
3. Faculty of Engineering, Chemical and Materials Engineering, University of Auckland, Auckland, New Zealand
4. Faculty of Material Science and Engineering, University of Science and Technology Beijing, Beijing, P. R. China
5. Faculty of Engineering, University of Waikato, Hamilton, New Zealand