Microstructural characterization of interface-engineered Si3N4 for improved fracture toughness and wear resistance

G. Ghosh*, S. Vaynman, M. E. Fine

*Corresponding author for this work

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

Abstract

Due to its low density, high strength and high modulus, Si3N4 is a potential candidate as a wear resistant material. However, the fracture toughness of Si3N4 is rather poor. It is well known that the fracture toughness of ceramics can be increased by introducing compressive residual stress at the surface. Improvement of wear resistance of Si3N4 by surface modification with Al2O3 has been demonstrated. The strengthening of polycrystalline Si3N4 by producing compressive stresses at all grain boundaries throughout the sample was studied.

Original languageEnglish (US)
Title of host publicationProceedings - Annual Meeting, Microscopy Society of America
EditorsG.W. Bailey, A.J. Garratt-Reed
Pages624-625
Number of pages2
StatePublished - Dec 1 1994
EventProceedings of the 52nd Annual Meeting of the Microscopy Society of America - New Orleans, LA, USA
Duration: Jul 31 1994Aug 5 1994

Other

OtherProceedings of the 52nd Annual Meeting of the Microscopy Society of America
CityNew Orleans, LA, USA
Period7/31/948/5/94

ASJC Scopus subject areas

  • Engineering(all)

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