[REVISED] HARDNESS OF ALUMINA-SILICON CARBIDE NANOCOMPOSITES AT VARIOUS SILICON CARBIDE VOLUME PERCENTAGES.pdf (1.46 MB)
Hardness of alumina/silicon carbide nanocomposites at various silicon carbide volume percentages
journal contribution
posted on 2014-05-01, 10:48 authored by James Wade, Houzheng WuVickers 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 & SonsVersion
- AM (Accepted Manuscript)
Publication date
2013Notes
Presented at the 37th International Conference and Expo on Advanced Ceramics and Composites (ICACC'13), Daytona Beach, Florida.ISBN
9781118807828Publisher version
Language
- en