Effects of Cr2O3 Addition on Mechanical and Electrical Properties of Alumina Ceramic

Hao Zhang; Yan Xu; Hai Yun Jin; Guan Jun Qiao

doi:10.4028/www.scientific.net/AMR.941-944.513

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 941-944Effects of Cr2O3 Addition on Mechanical and...

Effects of Cr₂O₃ Addition on Mechanical and Electrical Properties of Alumina Ceramic

Abstract:

The effects of Cr₂O₃ additions on the mechanical and electrical properties of alumina ceramics were investigated. The phase composition, organizational structure of ceramics were analyzed and observed using XRD and SEM. The results show that doping with small amount (<7wt.%) of Cr₂O₃ can improve the mechanical (15% for bending strength, 83% for Vickers hardness) and electrical properties (minimum resistivity 9.8 × 10¹²Ω·cm), but when doping amount above 7wt.% , these properties were decreased.

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Periodical:

Advanced Materials Research (Volumes 941-944)

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513-516

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.941-944.513

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Online since:

June 2014

Authors:

Hao Zhang, Yan Xu, Hai Yun Jin*, Guan Jun Qiao

Keywords:

Alumina Ceramic, Cr₂O₃, Electrical Properties, Microstructure

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