Microstructure property relationship in ceramic armor materials

Douglas M. Slusark, R. A. Haber

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

Abstract

The presence and spatial distribution of features within the microstructure of armor ceramics have drastic effects upon both the dynamic and quasi-static performance of these materials. Non-destructive evaluation (NDE) techniques such as ultrasound scanning provide a means to examine the bulk of a material without damaging or altering the sample. A study was conducted to correlate the relationship of non-destructive evaluation with microstructural variability and defect distributions for a sintered silicon carbide plate. Ultrasound C-scans were performed at 20MHz to determine the acoustic attenuation coefficient and the elastic modulus at each scanning point. Following non-destructive evaluation, the plate was machined into flexure bars for modulus of rupture determination. The identity and orientation of bars were preserved for comparison of mechanical properties to the NDE maps. Fractography was carried out on fracture surfaces to assess fracture behavior.

Original languageEnglish (US)
Title of host publicationAdvances in Ceramic Armor VII - A Collection of Papers Presented at the 35th International Conference on Advanced Ceramics and Composites, ICACC
Pages115-127
Number of pages13
Edition5
StatePublished - 2011
EventAdvances in Ceramic Armor VII - 35th International Conference on Advanced Ceramics and Composites, ICACC - Daytona Beach, FL, United States
Duration: Jan 23 2011Jan 28 2011

Publication series

NameCeramic Engineering and Science Proceedings
Number5
Volume32

Other

OtherAdvances in Ceramic Armor VII - 35th International Conference on Advanced Ceramics and Composites, ICACC
Country/TerritoryUnited States
CityDaytona Beach, FL
Period1/23/111/28/11

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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