| 二氧化钛含量对铈稳定立方氧化锆陶瓷的性能影响 |
| Effect of TiO2 Content on the Properties of Ceria-Stabilized Zirconia Cubic Ceramics |
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| 摘要: 本文用无压烧结法成功制备了高硬度的立方氧化锆陶瓷, 研究了氧化锆陶瓷的物相, Vickers硬度, 显微结构, 相对密度等性能, 主要分析了TiO2添加量对Zr0.8Ce0.2O2陶瓷硬度和相对密度的影响。结果表明:烧结助剂TiO2可以有效抑制陶瓷晶粒异常生长, 加快气孔排除, 促进氧化锆陶瓷烧结致密化, 提高陶瓷硬度。最高维氏硬度为20.2 GPa, 最高相对密度达到了99.8%。 |
| 关键词: 铈稳定氧化锆 立方相陶瓷 高硬度 无压烧结 二氧化钛 |
| 基金项目: 国家自然科学基金(No. 60578041);上海市科委国际合作基金(No.08520707300)资助项目。 |
| Abstract: In this paper, ceria-stabilized zirconia cubic ceramics with high hardness were fabricated by pressureless sintering processing. The microstructure, XRD, Vickers hardness and relative density of the ceramics were investigated. Effects of TiO2 content (in mole) on relative density and Vickers hardness of Zr0.8Ce0.2O2 ceramics were also studied. The results show that TiO2 can effectively inhibit excessive grain growth, eliminate residual pores and promote sintering. The highest Vickers hardness is 20.2 GPa. The maximum relative density reaches up to 99.8%. |
| Keywords: ceria-stabilized zirconia cubic ceramics high hardness pressureless sintering:TiO2 |
| 投稿时间：2012-11-05 修订日期：2012-12-26 |
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| 刘强,杨秋红,赵广根,陆神州,张浩佳.二氧化钛含量对铈稳定立方氧化锆陶瓷的性能影响[J].无机化学学报,2013,29(4):798-802. |
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