1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences 1295 Dingxi Road Shanghai 200050 P. R. China
2. Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences 19A Yuquan Road Beijing 100049 P. R. China
3. Centre for Translational Bone Joint and Soft Tissue Research Faculty of Medicine and University Hospital Carl Gustav Carus Technische Universität Dresden Fetscherstr. 74 Dresden 01307 Germany