1. Data sheet on RF Saffil (ICI Mond Division, Runcorn, Cheshire, UK, 1982).
2. W. R. Symes andE. Rastetter, Proceedings of the 24th International Colloquium on Refractories, Aachen, Sept. 1981.
3. R. L. Mehan,J. Compos. Mater. 4 (1970) 90.
4. M. J. Moore, E. Feingold andW. H. Sutton, ASTM STP 452 (American Society for Testing and Materials, Philadelphia, 1962) p. 90.
5. R. L. Mehan, ASTM STP 438 (American Society for Testing and Materials, Philadelphia, 1968) p. 29.