1. Chemical Stabilization of beta-Cristobalite
2. 2A. J. Perrotta, D. K. Grubbs, and E. S. Martin , "Process for Preparing Stabilized High Cristobalite ," U.S. Pat. No. 4818729, April 4, 1989 .
3. 3T. Sun , "Effects of Solid Solution on the High-Low Inversion of Cristobalite and the Stabilization of High Cristobalite ;" pp.52 85 inU.M.I. Dissertation Information Service, Michigan, 1989 .
4. 4J. F. MacDowell , "Alpha and Beta Cristobalite Glass Ceramic Articles and Methods ," U.S.Pat. No. 3445 252, May 20, 1969 .
5. 5C.T. Li , "Glasses, Thermally Stable High (Beta)-Cristobalite Glass-Ceramics and Method ," U.S. Pat. No. 4050946, September 27, 1977 .