1. Sialon hardmetal materials;Jack,1986
2. Characterization and properties of sialon materials;Ekström,1986
3. X-ray analysis of nitrogen ceramic phases;Liddell,1979
4. Fracture toughness determination by indentation;Evans;J. Am. Ceram. Soc.,1976
5. Liddell, K., Mandal, H., Thompson, D. P. & Ekström, T., Sialon ceramics sintered with additions of Yb2O3, Dy2O3 and Sm2O3 or as mixtures with Y2O3 (to be published).