Effect of ZrO2 on Mechanical and Biological Properties of Calcium Phosphate-Based Glass-Ceramics for Biomedical Applications
The effect of ZrO2 addition on mechanical and biological properties of bioactive glass-ceramics with chemical compositions of 60CaO-30P2O5-3TiO2-xZrO2-(7-x)Na2O (x=0,1,3) was investigated.It was found that ZrO2 addition up to 3 mol% contributes to monotonical increase of the glass transition temperature.The micro-hardness increases slightly by 1 mol% ZrO2 addition and keeps constant with further addition whereas 1 mol% ZrO2 addition results in ~20% increase of three-point bending strength.When the specimens were soaked in simulated body fluid,complete apatite layers were formed on the specimens regardless of the ZrO2 addition.It is therefore concluded that the toughening contribution of 1 mol% ZrO2 addition has no adverse effect on the bioactivity of calcium phosphate glass-ceramics.
Glass-ceramic Microhardness Bending strength Bioactivity
Caiyun Zheng Shujun Li Yulin Hao Rui Yang
Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,72 Wenhua Road,Shenyang 110016,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
1429-1432
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）