1. Department of Materials Science and Engineering; Norwegian University of Science and Technology (NTNU), Alfred Gets vei 2; NO-7491 Trondheim Norvège
2. Department of Geology and Mineral Resources Engineering; Norwegian University of Science and Technology (NTNU), Alfred Gets vei 2; NO-7491 Trondheim Norvège
3. Saint-Gobain Ceramic Materials AS; Nordheim; NO-4791 Lillesand Norvège