用溶胶共沉淀法辅以共沸蒸馏法工艺制备ZrO2/Al2O3复合粉体,研究了pH值和锆与铝的离子比对复合粉体和用这种复合粉体制备的瓷体的力学性能的影响.结果表明:随着溶胶体系pH值的增大,粉体粒径也相应增大.在制备粉体的混合溶液的pH值为8.6左右时,粉体没有明显的团聚且粒径分布均匀.随着氧化铝相对含量的提高,高弹性模量的Al2O3在烧结过程中起钉扎作用,阻碍Zr4+(Y3+)扩散传质的进行和晶界的移动,从而抑制了ZrO2晶体的生长,细化了ZrO2晶粒,表现为氧化锆的结晶温度、烧结体密度和复合陶瓷强度的提高.
参考文献
| [1] | Yoichiro Ichikawa,Yasumasa Akagawa,Hirosama Nikai and Hiromichi Tsuru,Tissue compatibility and stability of a new zirconia ceramic in vivo,The Journal of Prosthetic Dentistry,68(2),322(1992) |
| [2] | WANG Dalin,LIU Ling,Review on application for dental ceramics,Foreign Medicine Sciences:Fascicule of Biomedical Engineering,20(2),97(1997)(汪大林,刘玲,牙科陶瓷材料应用研究现状,国外医学(生物医学工程分册),20(2),97(1997)) |
| [3] | R.H.J.Hannink,P.M.Kelly,B.C.Muddle,Transformation toughening in zirconia-containing ceramics,Journal of American Ceramic Society,83(2),461(2000) |
| [4] | Massimiliano Guazzato,Kaarel Proos,Linda Quach and Michael Vincent Swain,Strength,reliability and mode of fracture of bilayered porcelain/zirconia (Y-TZP) dental ceramics,Biomaterials,25(20),5045(2004) |
| [5] | Andre R.Studart,Frank Filser,Peter Kocher and Ludwig J.Gauckler,Fatigue of zirconia under cyclic loading in water and its implications for the design of dental bridges,Dental Materials,23(1),106(2007) |
| [6] | Harry P.Papanagiotou,Steven M.Morgano,Russell A.Giordano and Richard Pober,In vitro evaluation of lowtemperature aging effects and finishing procedures on the flexural strength and structural stability of Y-TZP dental ceramics,The Journal of Prosthetic Dentistry,96(3),154(2006) |
| [7] | Anders Sundh,Goran Sjogren,Fracture resistance of all-ceramic zirconia bridges with differing phase stabilizers and quality of sintering,Dental Materials,22(8),778(2006) |
| [8] | O.Vasylkiv,Y.Sakka,V.Skorokhod,Low-temperature processing and mechanical of zirconia and zirconia-alumina nanoceramics,Journal of the American Ceramic Society,86(2),299(2003) |
| [9] | X.W.Huang,S.W.Wang,X.X.Huang,Microstructure and mechanical properties of ZTA fabricated by liquid phase sintering,Ceramics International,29(7),765(2003) |
| [10] | YU Qinghua,WANG Jieqiang,ZHENG Shaohua,GAO Xinrui,WANG Yong,Preparation of ZTA nanoceramic composites by liquid-phase precipitation method,Acts Materiae Compositae Sinica,23(3),108(2006)(于庆华,王介强,郑少华,高新睿,王勇,液相沉淀法制备ZTA纳米复相陶瓷,复合材料学报,23(3),108(2006)) |
| [11] | WANG Xin,YU Xuegang,SHAN Yan,SUN Yong,FAN Wentao,LIU Zifeng,On the fracture model of nano ZrO2/micro Al2O3 composite ceramics,Chinese Journal of Materials Research,21(5),482(2007)(王昕,于薛刚,单妍,孙勇,范文涛,刘子峰,纳米ZrO2与微米Al2O3复合陶瓷的断裂模式,材料研究学报,21(5),482(2007)) |
| [12] | LIN Jie,YANG Jian,LIU Jiao,QIU Tai,ZTA ceramics with nanometer composite powders,Journal of Materials Science and Engineering,25(5),760(2007)(林洁,杨建,刘娇,丘泰,用包裹纳米复合粉体制备ZTA陶瓷,材料科学与工程学报,25(5),760(2007)) |
| [13] | DUAN Guorong,YANG Xujie,LU Lude,WANG Xin,Preparation of single-phase nanosized zirconia by sol-gel and distillation method,Journal of Synthetic Crystals,35(2),327(2006)(段国荣,杨绪杰,陆路德,汪信,溶胶-凝胶/共沸蒸馏法制备单相氧化锆超细粉,人工晶体学报,35(2),327(2006)) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%