1. R. A. Eppler, paper presented before the American Ceramic Society, April 1967 in New York; see Bull. Am. Ceram. Soc.
46(4): 361 (1967), J. Am. Ceram. Soc., to be published.
2. H. P. Klug and L. E. Alexander, X-Ray Diffraction Procedures for Polycrystalline and Amorphous Materials, John Wiley and Sons, New York, 1954.
3. R. A. Eppler and W. A. McLeran, Jr., J. Am. Ceram. Soc.
50(3): 152–56 (1967); see also
4. R. A. Eppler and W. A. McLeran, Bull. Am. Ceram. Soc.
45(4): 387 (1966).
5. M. Avrami, J. Chem. Phys.
7: 1103–12 (1939);