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

Autor: Jian Ye Liu, Hua Shi Liu, Xian Qin Hou, Heyi Ge, Dong Zhi Wang
Rok vydání: 2012
Předmět:
Zdroj: Advanced Materials Research. :645-649
ISSN: 1662-8985
Popis: The effects of nano-ZrO2, ZrO2fiber and sintering additives on the mechanical properties of Al2O3ceramic composite were investigated by means of orthogonal experimental design. Meanwhile, the effect of environmental temperature on flexural strength of Al2O3ceramic composite was tested. XRD and SEM were used to analyze the microstructure. The results showed that the content of ZrO2fiber had the greatest effect on flexural strength and fracture toughness, followed by the content of nano-ZrO2. Nano-ZrO2made the crystalline grains of Al2O3smaller. ZrO2fiber pulled out from Al2O3matrix could consume energy of crack and increase the flexual strength and toughness of ceramic composite.
Databáze: OpenAIRE