Deducing the Fatigue Crack Growth Rates of Natural Flaws in Silicon Nitride Ceramics: Role of R-Curves,
Haertelt, M., Fuenfschilling S., Schwind T., Riesch-Oppermann H., Fett T., and Kruzic J. J.
, Journal of the American Ceramic Society, Aug, Volume 96, Number 8, p.2593-2597, (2013)