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Proceedings Paper

Fabrication and mechanical properties of Sialon-Si2N2O nanocomposite
Author(s): Junting Luo; Qing Zhang; Kaifeng Zhang
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Paper Abstract

Nano-structured Si2N2O-Sialon composites were prepared by liquid phase sintering method with the amorphous nano-sized Si3N4 and nano-sized AlN powders. Nano-sized Al2O3 and Y2O3 powders synthesized by polyacrylamide gel method were introduced as additives. High relative density 98.6% was observed at low sintering temperature of 1600 °C. XRD analysis indicates that the sintered body consisted of Sialon and Si2N2O crystalline phases. SEM and TEM examination confirmed the grain size of sintered body was less than 80nm. The high hardness 22.5GPa and high flexural strength 895MPa were obtained.

Paper Details

Date Published: 1 November 2007
PDF: 6 pages
Proc. SPIE 6423, International Conference on Smart Materials and Nanotechnology in Engineering, 64234W (1 November 2007); doi: 10.1117/12.780084
Show Author Affiliations
Junting Luo, Yanshan Univ. (China)
State Key Lab. of Metastable Materials Science and Technology (China)
Qing Zhang, Yanshan Univ. (China)
Kaifeng Zhang, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 6423:
International Conference on Smart Materials and Nanotechnology in Engineering

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