Presented at the Seventieth Annual Meeting, The American Ceramic Society, Chicago, Illinois, April 23, 1968 (Basic Science Division, No. 24–B-68).
Fracture Surface Energy of Glass
Article first published online: 2 JUN 2006
Journal of the American Ceramic Society
Volume 52, Issue 2, pages 99–105, February 1969
How to Cite
WIEDERHORN, S. M. (1969), Fracture Surface Energy of Glass. Journal of the American Ceramic Society, 52: 99–105. doi: 10.1111/j.1151-2916.1969.tb13350.x
Supported by the Advanced Research Projects Agency.
- Issue published online: 2 JUN 2006
- Article first published online: 2 JUN 2006
- Received July 17, 1968; revised copy received September 28, 1968.
Fracture surface energies of six glasses were measured using the double-cantilever cleavage technique. Values ranged from 3.5 to 5.3 J/m2 depending on the chemical composition of the glass and the temperature of the test. The fracture surface energy increased with decreasing temperature and increasing Young's modulus; however, exceptions to this behavior were noted. The magnitude of the values obtained is discussed with respect to the theoretical strength of glass and possible irreversible effects at the crack tip such as stress corrosion and plastic deformation are considered.