1. Institute of Materials Research and Engineering (IMRE) 2 Fusionopolis Way Singapore 138634 Singapore
2. Department of Materials Science and Engineering National University of Singapore (NUS) 9 Engineering Drive 1 Singapore 117576 Singapore
3. School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Ave Singapore 639798 Singapore
4. College of Design and Engineering Department of Mechanical Engineering National University of Singapore 9 Engineering Drive 1, Block EA #07-08 Singapore 117575 Singapore