1. Centre for Advanced Structural Ceramics; Department of Materials; Imperial College London; London SW7 2BP UK
2. Keramat S. L; Poligono Novo Milladoiro; A Coruña Spain
3. Department of Chemistry; University of Warwick; Coventry CV4 7AL UK
4. Department of Chemical Engineering; University of Bath; Bath BA2 7AY UK
5. The Blackett Laboratory; Imperial College London; London SW7 2BZ UK
6. Instituto de Ceramica de Galicia; Universidad de Santiago de Compostela; Spain