Preparation and Characterization of Zirconia-based Multi-phase Nanocomposite
ZrO2 (3Y)-CaO-SiO2-TiO2 powders with excellent chemical homogeneity were synthesized by heating the alcohol-aqueous salt solutions.The powders have good dispersion,with particle size of 11~15nm and no hard agglomeration.The nanocomposite powders were hot-pressed in vacuum.The obtained zirconia-based multi-phase nanocomposites were characterized by using XRD and SEM,as well as relative density testing.The results demonstrated that,even though the sintering temperature was as low as 1250℃,a high relative density of 97.5% was achieved.The superplastic compressive tests of the as-sintered specimens demonstrate that this material behaves good deformability at 1350~1500℃,at which the maximum extrusion pressure is lower than 35MPa.
Zirconia-based nanocomposite Low-temperature sintering Superplasticity
Yongshun Yang Yiran Liu Guoqing Chen
School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang 47100 School of Materials Science and Engineering,Dalian University of Technology,Oalian 116024,China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
762-764
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）