The Effect of Nano-Al₂O₃ on Sintering Behavior and Mechanical Property of ZrO₂ Ceramics

Abstract:

The effect of addition nanoAl₂O₃ on sintering behavior and mechanical property of ZrO₂ was studied. It was shown that the addition of nanoAl₂O₃ with the Al₂O₃ content from 0.5mol% to 2.0mol% in ZrO₂ ceramics could accelerate the sintering of ZrO₂ and increase the flexural strength and fracture toughness of ZrO₂. ZrO₂ added with 1.0mol% nanoAl₂O₃ has the maximum in strength of 650MPa and toughness of 15MPa·m^1/2 sintered at 1450°C. Compared with undoped ZrO₂ being sintered at 1500°C, the strength and toughness was improved by 12% and 18%, respectively.

• Periodical: Key Engineering Materials (Volumes 602-603)
• Pages: 327-330
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.602-603.327
• Online since: March 2014
• Authors: Zhong Zhou Yi*, Hong Yan Sun, Bo Wang, Feng Rui Zhai, Zhi Peng Xie
• Keywords: Alumina, Mechanical Property, Nanocomposite, Sinterabiliy, Zirconia

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