...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Research >Fabrication, Chemical Etching, And Compressive Strength Of Porous Biomimetic Sic For Medical Implants
【24h】

Fabrication, Chemical Etching, And Compressive Strength Of Porous Biomimetic Sic For Medical Implants

机译：医用植入物多孔仿生材料的制备，化学刻蚀和抗压强度

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

BioSiC is a biomimetic SiC-based ceramic material fabricated by Si melt infiltration of carbon preforms obtained from wood. The microstructure of bioSiC mimics that of the wood precursor, which can be chosen for tailored properties. When the remaining, unreacted Si is removed, a SiC material with interconnected porosity is obtained. This porous bioSiC is under study for its use as a medical implant material. We have successfully fabricated bioSiC from Sipo wood and studied the kinetics of Si removal by wet etching. The results suggest that the reaction is diffusion-limited, and the etch rate follows a t~(-0.5) law. The etching rate is found to be anisotropic, which can be explained attending to the anisotropy of the pore distribution. The compressive strength was studied as a function of etching time, and the results show a quadratic dependence with density. In the attainable range of densities, the strength is similar or better than that of human bone.
机译：BioSiC是一种仿生SiC基陶瓷材料，它是通过对从木材中获得的碳预成型坯进行硅熔渗而制成的。 bioSiC的微观结构模仿了木材前体的微观结构，可以根据需要定制其性能。当除去剩余的未反应的Si时，获得具有互连孔隙率的SiC材料。这种多孔生物碳化硅正在研究用作医疗植入材料。我们已经成功地从Sipo木材制造了bioSiC，并研究了通过湿法蚀刻去除Si的动力学。结果表明反应是受扩散限制的，蚀刻速率遵循t〜（-0.5）定律。发现蚀刻速率是各向异性的，这可以根据孔隙分布的各向异性来解释。研究了抗压强度与蚀刻时间的关系，结果表明密度与密度呈二次关系。在可达到的密度范围内，强度与人的骨骼相似或更好。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号