| 溶胶–凝胶法制备不同形态的半透明羟基磷灰石陶瓷 |
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| 引用本文： | 罗会涛,郭泰林,朱德贵,智 伟,段 可,张成栋,屈树新,翁 杰.溶胶–凝胶法制备不同形态的半透明羟基磷灰石陶瓷[J].无机材料学报,2013,28(8):804-810. |
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| 作者姓名： | 罗会涛 郭泰林 朱德贵 智 伟 段 可 张成栋 屈树新 翁 杰 |
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| 作者单位： | (西南交通大学 材料科学与工程学院, 材料先进技术教育部重点实验室, 四川610031) |
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| 基金项目： | 国家重点基础研究发展计划(973计划, 2012CB933602); 国家自然科学基金重点项目(51172188); 四川省科技支撑计划(2010FZ0048); 西南交通大学博士创新基金 |
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| 摘 要： | 为探索制备不同形态半透明羟基磷灰石(T-HA)陶瓷的方法, 采用微米级HA粉体为原料, 甲壳素为粘结剂, 用溶胶–凝胶法制备出球状和纤维状的陶瓷初坯, 然后进行常压烧结得到纯HA陶瓷, 最后经过热等静压烧结得到T-HA陶瓷。溶胶–凝胶法赋形简单, 制备出的球状T-HA陶瓷的球形度良好, 纤维状T-HA陶瓷的纵横比高, 其致密度为99.1%, 平均晶粒尺寸为2.2 μm。其中球状半透明HA陶瓷的抗压强度为10.2 MPa, 高于常规烧结得到的球状致密和多孔HA陶瓷(分别为8.9和4.7 MPa)。仿生矿化和细胞培养的结果显示半透明HA陶瓷具有良好的生物相容性。
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| 关 键 词： | 羟基磷灰石 溶胶–凝胶法 半透明 高抗压强度 复杂形态 |
| 收稿时间： | 2012-09-30 |
| 修稿时间： | 2012-11-05 |
Fabrication of Translucent Hydroxyapatite Ceramics with Different Forms by Sol-Gel Method |
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| LUO Hui-Tao,GUO Tai-Lin,ZHU De-Gui,ZHI Wei,DUAN Ke,ZHANG Cheng-Dong,QU Shu-Xin,WENG Jie.Fabrication of Translucent Hydroxyapatite Ceramics with Different Forms by Sol-Gel Method[J].Journal of Inorganic Materials,2013,28(8):804-810. |
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| Authors: | LUO Hui-Tao GUO Tai-Lin ZHU De-Gui ZHI Wei DUAN Ke ZHANG Cheng-Dong QU Shu-Xin WENG Jie |
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| Affiliation: | (Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China) |
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| Abstract: | In order to fabricate translucent hydroxyapatite ceramics with different forms, using micro-sized HA powders as the raw material and chitin as adhesive, the ceramic green was prepared by Sol-Gel method. Subsequently, pure HA ceramics were obtained by normal pressure sintering. Translucent HA ceramics were then fabricated via hot isostatic pressing (HIP) sintering. The Sol-Gel method is easy to obtain shaped ceramic products. The so-produced HA ceramic spheres with a good sphericity and the HA ceramic fibers with a high aspect ratio have the density of 99.1% and the average grain size of 2.2 μm. Compressive strength of translucent HA ceramic spheres is 10.2 MPa whith It is higher than that of conventionally-sintered dense and porous HA ceramic spheres (8.9 and 4.7 MPa, respectively). Results of biomimetic mineralization and cell culture show that translucent HA ceramics have good biocompatibility. |
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| Keywords: | hydroxyapatite Sol-Gel method translucent high compressive strength complicated forms |
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