Toughening mechanics of ZrO2 toughened Al2O 3 composite ceramics was researched by mechanical property test and X-ray phase analysis. The results show that: t→m phase transformation rate of ZrO2 is one of the main factors in zirconia toughened alumina composite ceramics. If samples are broken down, t→m phase transformation rate of ZrO2 is the highest when ZrO2 content is 25%. At the same time the rate of nano-zirconia toughened alumina ceramics is higher than that of sub-micron composite ceramics. So fracture toughness of ceramics can be improved significantly by adding proper amount of ZrO2 into Al2O3 matrix and refining ZrO2 particles. In addition, to nano-zirconia particles, some other toughening mechanics exist such as nano effects, microcrack toughening, etc.
CITATION STYLE
Zhao, B., Du, B. Y., & Duan, T. L. (2008). Research on toughening mechanics of zirconia toughened alumina composite ceramics. In Advanced Design and Manufacture to Gain a Competitive Edge: New Manufacturing Techniques and their Role in Improving Enterprise Performance (pp. 215–221). CSREA Press. https://doi.org/10.1007/978-1-84800-241-8_23
Mendeley helps you to discover research relevant for your work.