Characterization of dynamic failure process of SI3N4 ceramics, part I

Test procedures, fracture energies, and fractographic analysis

Maria B. Maros, Nikoletta Kaulics, Peter Arató

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Brittleness of engineering ceramics is one of the most critical properties limiting their application as structural materials. Therefore mechanical tests providing toughness characteristics of these materials have special importance. The instrumented impact test represents a quick and simple method for characterizing the brittle/ductile behavior of different materials and provides valuable information about the damage process that take place over time. While this method is widely applied for metallic and polymeric materials, it is still rarely used for examining ceramics. This paper introduces new results on instrumented impact testing of Si3N4 based ceramics. Different aspects of the dynamic failure process are considered, providing various mechanical characteristics of the tested material. These results are completed with analysis of the fracture surfaces and failure mechanism using fractography. The main objectives of the first part of the experimental and theoretical work were as follows: Determining various dynamic mechanical characteristics of Si3N4 ceramics and investigating the effect of certain test parameters on the measured data; Introducing the problem of determination of the force belonging to the unstable crack propagation at high loading rates for notched and unnotched specimens; Analyzing the failure origin and fracture mechanisms of the investigated Si3N4 ceramics by fractography. A companion paper1 presents results for determination of dynamic fracture toughness, KId.

Original languageEnglish
Title of host publicationCeramic Transactions
Pages421-433
Number of pages13
Volume199
Publication statusPublished - 2007
Event5th Conference on the Fractography of Glasses and Ceramics - Rochester, NY, United States
Duration: Jul 9 2006Jul 13 2006

Publication series

NameCeramic Transactions
Volume199
ISSN (Print)10421122

Other

Other5th Conference on the Fractography of Glasses and Ceramics
CountryUnited States
CityRochester, NY
Period7/9/067/13/06

Fingerprint

Fracture energy
Fractography
Impact testing
Brittleness
Toughness
Fracture toughness
Crack propagation
Polymers
silicon nitride

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Maros, M. B., Kaulics, N., & Arató, P. (2007). Characterization of dynamic failure process of SI3N4 ceramics, part I: Test procedures, fracture energies, and fractographic analysis. In Ceramic Transactions (Vol. 199, pp. 421-433). (Ceramic Transactions; Vol. 199).

Characterization of dynamic failure process of SI3N4 ceramics, part I : Test procedures, fracture energies, and fractographic analysis. / Maros, Maria B.; Kaulics, Nikoletta; Arató, Peter.

Ceramic Transactions. Vol. 199 2007. p. 421-433 (Ceramic Transactions; Vol. 199).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Maros, MB, Kaulics, N & Arató, P 2007, Characterization of dynamic failure process of SI3N4 ceramics, part I: Test procedures, fracture energies, and fractographic analysis. in Ceramic Transactions. vol. 199, Ceramic Transactions, vol. 199, pp. 421-433, 5th Conference on the Fractography of Glasses and Ceramics, Rochester, NY, United States, 7/9/06.
Maros MB, Kaulics N, Arató P. Characterization of dynamic failure process of SI3N4 ceramics, part I: Test procedures, fracture energies, and fractographic analysis. In Ceramic Transactions. Vol. 199. 2007. p. 421-433. (Ceramic Transactions).
Maros, Maria B. ; Kaulics, Nikoletta ; Arató, Peter. / Characterization of dynamic failure process of SI3N4 ceramics, part I : Test procedures, fracture energies, and fractographic analysis. Ceramic Transactions. Vol. 199 2007. pp. 421-433 (Ceramic Transactions).
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