期刊文献+

生物玻璃涂层性能的研究

Investigation of the Properties of the BG Coatings
下载PDF
导出
摘要 本实验所用涂层为磷硅酸盐玻璃系统,涂层以Sol-gel工艺制得。对该工艺制得的涂层于不同温度(700℃、800℃、900℃)下烧成后的各项性能进行比较,对涂层断面进行分析,以确定不同烧成温度下涂层-基体的界面状态。结果表明800℃烧成的涂层具有最好的综合性能:晶型简单;表面虽有裂纹存在,但基体并未裸露,实现了有效涂层的目的;层间扩散明显,涂层.基体界面处有良好过渡;与基体的结合强度高(2层为10.50MPa,4层为7.11MPa);在模拟体液(SBF)中浸泡30天后表面有大量羟基磷灰石(HA)生成,表明其具有良好的生物活性。 In previous work, a bioglass (BG) coating which belongs to phosphoric silicate was deposited by sol-gel technology. Hereon the samples sintered at different temperature(700% ,800℃ and 900℃ ) were characterized respectively. Noted that we studied the samples' cross sections to determine the structure and composition of the coating-substrate interface. The result suggests that the coatings sintered at 800℃ present optimal integrated properties:they have clear crystallinity; they cover the substrate effectively despite the existing of the cracks ; there are obvious component gradient at the coatings-substrate interface indicating the elements diffused between layers during the sintering; the bonding strength is high( 10. 50MPa when deposited twice,7, llMPa when deposited four times) ; abundant HA aggregate on the surfaces of the samples after immersed in SBF for 30d, from this we can roughly predict that they have excellent bioactivity.
出处 《材料导报》 EI CAS CSCD 北大核心 2005年第F05期328-331,共4页 Materials Reports
关键词 溶胶-镶胶法 生物玻璃涂层 断面分析 sol-gel, BG coatings, cross-sectional analysis
  • 相关文献

参考文献2

二级参考文献32

  • 1Suchanek W, Yoshimura M. Processing and properties of hydroxyaparite-based biomatefials for use as hard tissue replacement implants[J] .J Mater Res, 1998,13:94 ~ 117.
  • 2de Groot K, Geesink RGT, Klein CPAT, Serakian P. Plasma sprayed coatings of hydroxyapatite[ J ]. J Biomed Mater Res, 1987,21 : 1375~ 1387.
  • 3Shirkhanzadeh M. Calcium phosphate coatings prepared by electrocrystallization from aqueous electrolytes[J] .J Mater Sci Mater Med,1995,6:90-93.
  • 4Nie X, Leyland A, Matthews A. Deposition of layered bioceramic hydroxyapatite/TiO2 coatings on titanium alloys using a hybrid technique of micro-arc oxidation and dectrophoretic [ J ]. Surface Coat Technol,2000,125:407 ~ 414.
  • 5Wen HB, Wolke JC, C, de Wijn JR, Liu Q, Cui FZ, de Groot K. Fast precipitation of calcium phosphate layers on titanium induced by simple chemical treatments[ J]. Biomater 1997,18:1471 ~ 1478.
  • 6Wen HB, de Wijn JR, Cui FZ, de Groot K. Preparation of calcium phosphate coatings on titanium implant materials by simple chemistry[J] .J Biomed Mater Res, 1998,41:227 ~ 236.
  • 7Kum HM, Miyaji F, Kokubo T, Nakamura T. Preparation of bioactive Ti and its alloys via simple chemical surface treatment[J] .J Biomed Mater Res, 1996,32:409 ~ 417.
  • 8de Groot K, Wen HB, Liu Y, Layrolle P, Barrere F. Biomiraetic coatings on orthopedic implants: a review. Mat Res Soc Symp Proc[J].Materials Research Society,2000,599:109 ~ 116.
  • 9Yan WQ, Nakamura T, Kobayashi M, Kim HM, Miyaji F. Bonding of chemically treated titanium implants to bone [ J ]. J Biomed Mater Res, 1997,37:267 ~ 275.
  • 10Kim HM, Miyaji F, Kokubo T, Nakamura T. Bonding strength of bonelike apatite layer to Ti Metal substrate[J] .J Biomed Mater Res(Appl Biomater), 1997,38:121 ~ 127.

共引文献10

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部