1. Engineering Materials Institute, School of Mechanical, Materials & Mechatronics Engineering, University of Wollongong, Wollongong, New South Wales 2500, Australia
2. Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, New South Wales 2522, Australia
3. School
of Materials Science and Engineering, The University of New South Wales, Kensington, New South Wales 2052, Australia