Mechanical Behavior of Crystalline Solids: Proceedings of a Symposium, April 28-29, 1962. Held Under the Auspices of the Ceramic Educational Council of the American Ceramic Society, with the Cooperation of the National Bureau of Standards, and Under the Sponsorship of the Edward Orton Junior Ceramic Foundation and the Office of Naval Research. The Symposium Took Place at the 64th Annual Meeting of the American Ceramic Society in New York City