二氧化碳微波等离子体烧结钙磷生物陶瓷  

Microwave Plasma Sintering of Calcium Phosphate Bioceramics in Carbon Dioxide

作　　者：冉旭[1] 郑青[2] 冉均国[2] 苟立[2] 陈继镛[3] 罗教明[3] 张兴栋[3] 

机构地区：[1]四川大学轻纺与食品学院,四川成都610065 [2]四川大学材料科学与工程学院,四川成都610065 [3]四川大学国家生物医学材料工程技术研究中心,四川成都610064

出　　处：《稀有金属材料与工程》2007年第A02期50-53,共4页Rare Metal Materials and Engineering

基　　金：国家重点基础研究项目(973G1999046760)资助

摘　　要：采用CO_2微波等离子体烧结制备了CHA陶瓷。研究了烧结温度、气体压力、升温速率、匣钵材料对CHA陶瓷性能的影响。用FT-IR和SEM表征CHA陶瓷CO_3^(2-)含量和晶粒大小。实验结果表明,随着烧结温度、气体压力和升温速率的提高,CO_3^(2-)含量减少,CHA陶瓷晶粒尺寸随烧结温度的上升而急剧增大。最终烧制出含5%CO_3^(2-)、200nm的CHA陶瓷。Carbonated hydroxyapatite （CHA） with good bioactivity was fabricated by CO2 microwave plasma sintering. The effect of the sintering temperature, the gas pressure, the rate of rising temperature as well as the kiln materials on the properties of CHA were investigated. ET-IR and SEM were used to describe the content of CO3^2- and the grain size, respectively. The results indicated that the content of CO3^2- decreased with the rising Of the sintering temperature, the gas pressure and the rate of rising temperature; the grains of CHA grew rapidly with increasing of the sintering temperature. As a result, the CHA containing the CO3^2- 5wt% with the size of grains 200 nanometer was obtained. It suggests that microwave plasma is a new method to produce carbonated hydroxyapatite.

关 键 词：二氧化碳 微波等离子体 烧结 碳酸羟基磷灰石 

分 类 号：R318.08[医药卫生—生物医学工程]