Determination of Dynamic Fracture Toughness of Si3N4 Ceramics by Instrumented Impact Test


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The current paper give a brief overview over the principle and information content of the instrumented impact test completed by electro-emission measurement. Introducing over experiences taken by applying these test on a high-tech SiAlON ceramic a novel method for the determination of the dynamic fracture toughness of silicon nitride ceramics is suggested.



Edited by:

J. Dusza, R. Danzer and R. Morrell




M. B. Maros et al., "Determination of Dynamic Fracture Toughness of Si3N4 Ceramics by Instrumented Impact Test ", Key Engineering Materials, Vol. 290, pp. 304-307, 2005

Online since:

July 2005




[1] Test method for fracture toughness of monolithic ceramics at room temperature by single edge precracked beam (SEPB) method, ISO/DIN 15732, Int. Org. For Standard., (1999).


[2] Standard Test Methods for Determination of Fracture Toughness of Advanced Ceramics at Ambient Temperature, ASTMC1421-99, Am. Soc. for Test. and Mats., Philadelphia, (1999).

[3] T. Kobayashi, M. Niinomi, Y. Koide, K. Matsunuma: Instrumented Impact Testing of Ceramics, (Transactions of the Japan Institute of Metals, Vol. 27, No. 10, 1986).


[4] T. Kobayashi, Y. Koide, Y. Daicho, R. Ikeda: Dynamic fracture toughness testing of epoxy resin filled with SiO2 particles, (Eng. Fract. Mech., Vol. 28., No. 1., 1987).


[5] W. Böhme: Determination of the impact fracture toughness KID of plastics at high rates of loading >1m/s, (Fracture Mechanics Testing Methods for Polymers, Adhesives and Composites, ESIS Publication 28, 2001).


[6] I. Lévay, Gy. B. Lenkey, L. Tóth, Z. Major: The effect of the testing conditions on the fracture mechanics characteristics of short glass fibre reinforced polyamide, (Journal of Materials Processing Technology, Vol. 133., 2003).


[1] [2] [3] [4] [5] [6] [7] [8] 0, 0 0, 5 1, 0 1, 5 2, 0 2, 5 3, 0 Loading rate, m/s Static and dynamic fracture toughness, MPa m1/2 Static equation DKC method Averages.