Fracture toughness of ceramics fired at different temperaturesSin, Peter; Veinthal, Renno; Sergejev, Fjodor; Antonov, Maksim; Stubna, IgorMaterials science = Medžiagotyra2012 / p. 90-92 : ill https://www.researchgate.net/publication/268257498_Fracture_Toughness_of_Ceramics_Fired_at_Different_Temperatures