Evaluation of the interfacial bonding between cubic BN and glass

Chris Y. Fang, Hoikwan Lee, Alfonso Mendoza, David J. Green, Carlo G. Pantano

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

Abstract

The goal of this study is to evaluate the mechanical strength of cubic BN-glass interfaces. To measure interfacial bonding strength, when only sub-mm sized cubic boron nitride (cBN) crystals are available, a glass-cBN-glass sandwich test structure was developed. Samples were prepared by joining two glass rods end-to-end with an intervening layer of 120-140 mesh (115±10 μm) cBN particles. The sandwich structures were heat treated to fuse the glass to the cBN particles with negligible glass-to-glass contact. Four-point bend tests were performed on these samples to obtain the nominal failure stress. The cBN-glass bonding area and nature of the de-bonded surfaces was observed using scanning electron microscopy (SEM), The interfacial bonding strength was then estimated to be 22 MPa from the integrated bonding area and the four-point bend strength.

Original languageEnglish (US)
Title of host publicationDevelopments in Strategic Materials, Proceedings - A Collection of Papers Presented at the 32nd International Conference on Advanced Ceramics and Composites
Pages251-260
Number of pages10
Edition10
StatePublished - Mar 27 2009
EventDevelopments in Strategic Materials - 32nd International Conference on Advanced Ceramics and Composites - Daytona Beach, FL, United States
Duration: Jan 27 2008Feb 1 2008

Publication series

NameCeramic Engineering and Science Proceedings
Number10
Volume29
ISSN (Print)0196-6219

Other

OtherDevelopments in Strategic Materials - 32nd International Conference on Advanced Ceramics and Composites
CountryUnited States
CityDaytona Beach, FL
Period1/27/082/1/08

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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