1. Dept. of Materials Science and Metallurgy; University of Cambridge; Cambridge 27 Charles Babbage Road CB3 0FS U.K.
2. Singapore Institute of Manufacturing Technology; 73 Nanyang Drive; Singapore 638075 Singapore
3. ERA Technology Ltd.; Leatherhead Cleeve Road KT22 7SA U.K.
4. Rolls-Royce plc.; Derby P.O. Box 2000, Raynesway DE21 7XX U.K.