180 Prakt. Met. Sonderband 46 (2014)
Aufwand verbessert werden. Voraussetzung dafür ist aber dass die Oberflächendefekte
nicht zu groß sind, die Oxidschicht im Einsatz weitgehend intakt bleibt und nicht durch
korrosive Einflüsse zerstört wird.
LITERATUR
[1] Gupta, T. K.: “Strength degradation and Crack propagation in Thermally Shocked
Al,O3”, Journal of the American Ceramic Society, 55, 1972, p. 249
[2] Schneider G. A., Petzow G.: ” Thermal Shock and Fatigue Behavior of advanced
Ceramics”, Kluver Academic Publishers NATO ASI Series, Series: Applied
Sciences 241, 1983
[3] Parkus H.: “Thermoelasticity”, 2" revised and enlarged edition, Springer Verlag,
1976
[4] Hasselmann D. P. H.: “Unified Theory of Thermal Shock Fracture Initiation and
Crack Propagation in Brittle Ceramics, Journal of the American Ceramic Society,
52, 1969, p. 600
[5] Fellner, M., Supancic P.: “Thermal Shock Failure of Brittle Materials”, Key
Engineering Materials, 223,2002, p. 96
[6] Munz, D., Fett, T.: “Ceramics: Mechanical properties, failure behaviour, materials
selection, Springer Verlag, 1999
[7] Danzer, R., Lube, T., Supancic, P., Damani, R.: “Fracture of Ceramics”, Adv. Eng.
Mat., 10, 2008, p. 275
[8] Harrer, W., Danzer, R., Morrell R.: “Influence of surface defects on the biaxial
strength of a silicon nitride ceramic-Increase of strength by crack healing”, Journal
of the European Ceramic Society, 32, 2012, p. 27
[9] EN 843-1: “Advanced technical ceramics, monolithic ceramics-Mechanical
properties at room temperature, part 1: determination of flexural strength”, 1995
[10] Borger, A., Supancic, P., Danzer, R.: “The Ball on three Balls Test for Strength
Testing of Brittle Discs: Stress Distribution in the Disc”, Journal of the European
Ceramic Society, 22, 2002, p. 1425
[11] Borger, A., Supancic, P., Danzer, R.: “The Ball on three Balls Test for Strength
Testing of Brittle Discs: Part Il: Analysis of Possible Errors in the Strength
Determination”, Journal of the European Ceramic Society, 24,2004, p. 2917
[12] Danzer R., Supancic P., Harrer W.: "Der 4-Kugelversuch zur Ermittlung der
biaxialen Biegefestigkeit spréder Werkstoffe", Hrsg. Jochen Kriegesmann,
Technische keramische Werkstoffe, HvB Verlag GbR., 2009
[13] Damani R., Gstrein R., Danzer R.: "Critical Notch Root Radius in SENB-S
Fracture Toughness Testing", Journal of the European Ceramic Society, 16, 1996,
p. 695
[14] ISO/FDIS 23146: “Fine Ceramics (advanced ceramics, advanced technical
ceramics)-Test methods for fracture toughness of monolithic ceramics-Single-
edge V-notch beam (SEVNB) method”, 2008
