[REVISED] HARDNESS OF ALUMINA-SILICON CARBIDE NANOCOMPOSITES AT VARIOUS SILICON CARBIDE VOLUME PERCENTAGES.pdf (1.46 MB)
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Hardness of alumina/silicon carbide nanocomposites at various silicon carbide volume percentages

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journal contribution
posted on 01.05.2014 by James Wade, Houzheng Wu
Vickers indentation was employed to measure the microhardness of monolithic alumina and six alumina-based nanocomposites consisting of variable silicon carbide nanoparticle volume percentages of 0.3% to 20%. Indentation tests were performed over a broad range of loads from 0.5N to 40N. The resultant hardness-load curves exhibit cumulative increases in the apparent hardness based on the silicon carbide content and reveal each sample suffers from a prominent indentation size effect (ISE). Herein, we present a comprehensive analysis of this data using Meyer’s Law, the proportional specimen resistance model (PSR) and the modified proportional specimen resistance model (MPSR) and employ TEM imagery to detail potential mechanisms by which silicon carbide nano-reinforcements influence the “true hardness” and the ISE.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Citation

WADE, J. and WU, H., 2013. Hardness of alumina/silicon carbide nanocomposites at various silicon carbide volume percentages. IN: Mathur, S. et al. (eds) Ceramic Engineering and Science Proceedings. Nanostructured Materials and Nanotechnology VII. Hoboken, NJ, USA: John Wiley & Sons, Inc. 34 (7), pp. 119 - 130.

Publisher

© The American Ceramic Society. Published by John Wiley & Sons

Version

AM (Accepted Manuscript)

Publication date

2013

Notes

Presented at the 37th International Conference and Expo on Advanced Ceramics and Composites (ICACC'13), Daytona Beach, Florida.

ISBN

9781118807828

Language

en

Exports