Effect of the Amount of Recycled Materials on Properties and Microstructure of the Al2O3-C Materials

Jian Zhu Wang; Jun Xue Zhao

doi:10.4028/www.scientific.net/AMR.641-642.321

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 641-642Effect of the Amount of Recycled Materials on...

Effect of the Amount of Recycled Materials on Properties and Microstructure of the Al₂O₃-C Materials

Abstract:

Abstract. Samples of Al₂O₃-C materials were prepared, based on the tabular corundum and recycled materials as raw materials, natural graphite as carbon source, Si as antioxidant and phenolic resin as binder. The physical properties were determined and the microstructure evolution in the samples were analyzed by scanning electron microscopy. The results shows that, Firstly the apparent porosity rate change little and the body density decreases much with the amount of recycled materials increasing. Secondly the room temperature strength and the high temperature strength decreases when the amount of recycled materials increases. Especially the strength of sample decreases rapidly when the amount of recycled materials is over 15(wt)%. In addition, the grain of recycled materials are wrapped up in the face by a powder layer. The body density and the strength of samples decrease because of the apparent porosity.

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Periodical:

Advanced Materials Research (Volumes 641-642)

Pages:

321-324

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.641-642.321

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Online since:

January 2013

Authors:

Jian Zhu Wang, Jun Xue Zhao

Keywords:

Al₂O₃-C Material, Microstructure, Property, Recycled Material

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