1. Haggerty, S., Growth of titanium and chromium strengthened sapphire fibers. Technical Report AFML-TR-73-2. Air Force Materials Laboratory, WPAFB, OH, 1972.
2. Crane, R. L., An investigation of the mechanical properties of silicon carbide and sapphire filaments. Technical Report AFML-TR-72-180. Air Force Materials Laboratory, WPAFB, OH, 1972.
3. Sayir, H., Farmer, S. C., Lagerlof, K. P. D. and Sayir, A., Temperature dependent fracture strength of doped single-crystal alumina fibers. In Advances in Ceramic-Matrix Composites II, ed. J. P. Singh and N. P. Bansal, pp. 53–63. Ceramic Transactions, Vol 46. The American Ceramic Society, Westerville, OH, 1994.
4. Slow crack growth in sapphire fibers at 800° to 1500°C;Newcomb;J. Am. Ceram. Soc.,1993
5. Sayir, A., Time dependent strength of sapphire fibers at high temperatures. In Advanced Ceramic-Matrix Composites, ed. N. P. Bansal, pp. 691–703. Ceramic Transactions, Vol 38. The American Ceramic Society, Westerville, OH, 1993.