无机材料学报 ›› 2013, Vol. 28 ›› Issue (8): 804-810.DOI: 10.3724/SP.J.1077.2013.12590 CSTR: 32189.14.SP.J.1077.2013.12590

• 研究论文 • 上一篇    下一篇

溶胶–凝胶法制备不同形态的半透明羟基磷灰石陶瓷

罗会涛, 郭泰林, 朱德贵, 智 伟, 段 可, 张成栋, 屈树新, 翁 杰   

  1. (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)
  • 收稿日期:2012-09-30 修回日期:2012-11-05 出版日期:2013-08-20 网络出版日期:2013-07-15
  • 作者简介:罗会涛(1985–), 男, 博士研究生. E-mail: luo815923@163.com
  • 基金资助:

    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

Fabrication of Translucent Hydroxyapatite Ceramics with Different Forms by Sol-Gel Method

LUO Hui-Tao, GUO Tai-Lin, ZHU De-Gui, ZHI Wei, DUAN Ke, ZHANG Cheng-Dong, QU Shu-Xin, WENG Jie   

  1. (Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China)
  • Received:2012-09-30 Revised:2012-11-05 Published:2013-08-20 Online:2013-07-15
  • About author:LUO Hui-Tao. E-mail: luo815923@163.com
  • Supported by:

    National Basic Research Program of China (973 Program, 2012CB933602); National Nature Science Foundation of China (51172188); Science and Technology Pillar Project of Sichuan (2010FZ0048); Doctoral Innovation Foundation of Southwest Jiaotong University

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。

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

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.

Key words: hydroxyapatite, Sol-Gel method, translucent, high compressive strength, complicated forms

中图分类号: