Effect of Tb4O7 Doping on Wear Resistance of High-Alumina Ceramic

Cheng Hu; Bo Lin Wu

doi:10.4028/www.scientific.net/AMR.941-944.534

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 941-944Effect of Tb4O7 Doping on Wear Resistance of...

Effect of Tb₄O₇ Doping on Wear Resistance of High-Alumina Ceramic

Abstract:

It was investigated that the effect of wear resistance of high-alumina ceramic with a series of Tb₄O₇ additives. It showed that wear resistance of ceramic firstly increased and then decreased with increasing of Tb₄O₇ doped. And we found that microscopic played the vital role to affect wear resistance of alumina ceramic, decreasing grain sizes would improve the wear resistant. Terbium ions dissolved in liquid phases and the second phase of Tb₃Al₅O₁₂ appeared would improve microscopic of ceramic, taken grain sizes small and made ceramic density. Doped 0.2wt% Tb₄O₇, alumina ceramic with small grain sizes had better wear resistance than other ceramic.

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Periodical:

Advanced Materials Research (Volumes 941-944)

Pages:

534-537

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.941-944.534

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Online since:

June 2014

Authors:

Cheng Hu*, Bo Lin Wu

Keywords:

Alumina, Grain Size, Tb₄O₇, Wear Resistance

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