Effects of ZrO2 Fiber on the Mechanical Properties of Nano-ZrO2/Al2O3 Ceramic Composite

He Yi Ge; Jian Ye Liu; Xian Qin Hou; Hua Shi Liu; Dong Zhi Wang

doi:10.4028/www.scientific.net/AMR.455-456.645

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 455-456Effects of ZrO2 Fiber on the Mechanical Properties...

Effects of ZrO₂ Fiber on the Mechanical Properties of Nano-ZrO₂/Al₂O₃ Ceramic Composite

Abstract:

The effects of nano-ZrO₂, ZrO₂ fiber and sintering additives on the mechanical properties of Al₂O₃ ceramic composite were investigated by means of orthogonal experimental design. Meanwhile, the effect of environmental temperature on flexural strength of Al₂O₃ ceramic composite was tested. XRD and SEM were used to analyze the microstructure. The results showed that the content of ZrO₂ fiber had the greatest effect on flexural strength and fracture toughness, followed by the content of nano-ZrO₂. Nano-ZrO₂ made the crystalline grains of Al₂O₃ smaller. ZrO₂ fiber pulled out from Al₂O₃ matrix could consume energy of crack and increase the flexual strength and toughness of ceramic composite.

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Periodical:

Advanced Materials Research (Volumes 455-456)

Pages:

645-649

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.455-456.645

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Online since:

January 2012

Authors:

He Yi Ge, Jian Ye Liu, Xian Qin Hou, Hua Shi Liu, Dong Zhi Wang

Keywords:

Al₂O₃ Ceramic Composite, Nano-Zirconia, Zirconia Fiber

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