1. Materials Performance Centre, School of Materials, Univ. of Manchester, M13 9PL, GB.
2. Dept. of Materials, Univ. of Oxford, Parks Rd., Oxford OX1 3PH, GB.
3. EDF R&D, MMC Dept., Les Renardières, Route de Sens, Ecuelles, 77818 Moret sur Loing Cedex, FR.
4. Science and Technology Dept., Westinghouse Electric Co., 1340 Beulah Rd., Pittsburgh, PA, US.
5. Westinghouse Electric Sweden AB, S-721 63 Västerås, SE.
6. The Open Univ., Walton Hall, Milton Keynes, MK7 6AA, UB.