1. Key Laboratory of Automobile Materials of Ministry of Education School of Materials Science and Engineering Solid Waste Recycling Engineering Research Center of Jilin Province Open Research Laboratory for Physicochemical Testing Methods of Functional Minerals Ministry of Natural Resources Jilin University Changchun 130022 P. R. China
2. School of Materials Science & Engineering Electron Microscopy Center Jilin University Changchun 130012 P. R. China
3. Key Laboratory of Mineral Resources Evaluation in Northeast Asia Ministry of Natural Resources Changchun 130061 P. R. China