Al2O3含量对Ce-TZP陶瓷强韧性的影响
Effect of Al2O3 Content on Strength and Toughness of Ce-TZP Ceramics
摘 要
用真空热压烧结法, 向含有SiC颗粒的Ce-TZP陶瓷中添加不同含量的Al2O3颗粒; 通过XRD、SEM、EDS和力学试验设备等研究了Al2O3含量对复合陶瓷力学性能的影响及其强韧化机理。结果表明: 随着Al2O3含量的增加, 复合陶瓷的抗弯强度和断裂韧度呈先升高后降低的趋势, Al2O3物质的量分数为9%时其综合性能最佳; Al2O3颗粒细化了陶瓷晶粒, 对复合陶瓷材料中的裂纹有偏转和桥联的作用; 部分Al2O3颗粒嵌入到ZrO2基体晶粒内, 形成“晶内型”结构, 使材料发生穿晶断裂, 提高了材料的强韧性。
Al2O3
力学性能
强韧化
ZrO2 ceramic
Al2O3
mechanical property
strengthening and toughening
Abstract
Different contents of Al2O3 particles were added into Ce-TZP ceramics containing SiC particles using vacuum hot-pressing sintering. The effect of Al2O3 content on mechanical properties of the complex ceramics and strength and toughness mechanism were investigated by means of XRD, SEM, EDS and mechanical tester. The results show that with the increase of Al2O3 content, the bending strength and fracture toughness increased first and then decreased, the best comprehensive properties could be obtained when the mole fraction of Al2O3 was 9%. The Al2O3 particles could refine the grains, and had deflection and bridging action on the cracks. Some Al2O3 particles embedded into ZrO2 matrix grains, formed intragranular structure, which induced the transgranular fracture and increased the strength and toughness.
中图分类号 TB332
所属栏目
基金项目 山东省中青年科学家奖励基金项目(2005SB08006)
收稿日期 2010/7/8
修改稿日期 2011/6/4
网络出版日期
作者单位点击查看
备注刘志刚(1984-), 男, 山西大同人, 硕士研究生。
引用该论文: LIU Zhi-gang,LIU Ying-cai,DING Li-li,RONG Ding-hui,ZHANG Yu-ming,HU Xiao-ping. Effect of Al2O3 Content on Strength and Toughness of Ce-TZP Ceramics[J]. Materials for mechancial engineering, 2011, 35(9): 42～44
刘志刚,刘英才,丁莉莉,荣鼎慧,张玉明,胡校苹. Al2O3含量对Ce-TZP陶瓷强韧性的影响[J]. 机械工程材料, 2011, 35(9): 42～44
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】MASAKI T. Mechanical properties toughened ZrO2-Y2O3 ceramics[J]. Am Ceram Soc,1986,69(8):634-640.
【2】DOUGHERTY S E, NIEH G, WADSWORTH J. Mechanical properties of 20vol% SiC whisker reinforced, yttria-stabilized, tetragonal zirconia composite at elevated temperature[J]. Mater Res,1995,10(1):113-118.
【3】DING Z, OBERACKER R, FREI H,et al. Consolidation of Y-TZP/SiC particulate composites by sintering and containerless post-HIPing[J]. Eur Ceram Soc,1992,10(3):255-261.
【4】BAMBA N, CHOA Y H, SEKINO T. Mechanical properties and microstructure for 3mol% yttria doped zirconia/silicon carbide nanocomposites[J]. Eur Ceram Soc,2003,23(5):773-780.
【5】TEKELI S, ERDOGAN M, AKTAS B. Influence of α-Al2O3 addition on sintering and grain growth behaviour of 8mol% Y2O3-stabilized cubic zirconia (c-ZrO2)[J]. Ceram International,2004,30:2203-2209.
【6】贾德昌, 宋桂明.无机非金属材料性能[M].北京: 科学出版社, 2007.
【7】穆柏春.陶瓷材料的强韧化[M].北京: 冶金工业出版社, 2002.
【8】WANG C M. Microstructure development of Si3N4-TiN composites prepared by in-situ composting[J].Mater Sci,1995,30:3222-3230.
【2】DOUGHERTY S E, NIEH G, WADSWORTH J. Mechanical properties of 20vol% SiC whisker reinforced, yttria-stabilized, tetragonal zirconia composite at elevated temperature[J]. Mater Res,1995,10(1):113-118.
【3】DING Z, OBERACKER R, FREI H,et al. Consolidation of Y-TZP/SiC particulate composites by sintering and containerless post-HIPing[J]. Eur Ceram Soc,1992,10(3):255-261.
【4】BAMBA N, CHOA Y H, SEKINO T. Mechanical properties and microstructure for 3mol% yttria doped zirconia/silicon carbide nanocomposites[J]. Eur Ceram Soc,2003,23(5):773-780.
【5】TEKELI S, ERDOGAN M, AKTAS B. Influence of α-Al2O3 addition on sintering and grain growth behaviour of 8mol% Y2O3-stabilized cubic zirconia (c-ZrO2)[J]. Ceram International,2004,30:2203-2209.
【6】贾德昌, 宋桂明.无机非金属材料性能[M].北京: 科学出版社, 2007.
【7】穆柏春.陶瓷材料的强韧化[M].北京: 冶金工业出版社, 2002.
【8】WANG C M. Microstructure development of Si3N4-TiN composites prepared by in-situ composting[J].Mater Sci,1995,30:3222-3230.
相关信息
