Influence of Si3N4 Addition on the Mechanical Properties and Microstructure of Unfired A12O3-C Slide Plate

Li Ai; Jun Cong Wei; Xiu Mei Ji; Jun Bo Tu

doi:10.4028/www.scientific.net/AMM.268-270.78

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 268-270Influence of Si3N4 Addition on the Mechanical...

Influence of Si₃N₄ Addition on the Mechanical Properties and Microstructure of Unfired A1₂O₃-C Slide Plate

Abstract:

The effects of Si3N4 addition on the room temperature physical properties and hot modulus of rupture(HMOR) of unfired A12O3-C slide plate were investigated by using tabular corundum and reactive alumina as starting materials, aluminium powder and silicon powder as antioxidation agents, phenolic resin as binder. The phase composition and microstructure was characterized by X-Ray diffraction (XRD), scanning electron microscope (SEM), and EDAX. The results showed that with addition of Si3N4, the compactness of A12O3-C slide plate decreased, the room temperature strength deduced. Due to formed cylindrical sialon as a binder phase, the hot modulus of rupture increased.

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Periodical:

Applied Mechanics and Materials (Volumes 268-270)

Pages:

78-81

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.268-270.78

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Online since:

December 2012

Authors:

Li Ai, Jun Cong Wei, Xiu Mei Ji, Jun Bo Tu

Keywords:

A1₂O₃-C, Microstructure, SiAlON, Slide Plate

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