期刊文献+

ZrO_2改性CaO-SiO_2复合生物涂层的制备及表征 被引量:3

Preparation and characterization of ZrO_2 modified CaO-SiO_2 bio-composite coatings
原文传递
导出
摘要 以CaO稳定的ZrO2为原料,与适量SiO2在1400℃下反应,制得Ca2SiO4不同含量(质量分数:20%、40%、60%)的ZrO2改性CaO-SiO2复合粉体,并采用大气等离子体喷涂技术制备涂层。利用X射线衍射(XRD)、电子探针(EPMA)及能量色散谱(EDS)对涂层相组成和形貌进行表征。涂层的体外生物活性和稳定性以模拟体液(SBF)和Tris-HCl缓冲溶液浸泡实验进行评价。结果表明:ZrO2改性CaO-SiO2基复合涂层在SBF中浸泡后,表面形成磷灰石能力与Ca2SiO4含量有关,Ca2SiO4含量低于40%的涂层表面难以形成磷灰石;改性涂层在Tris-HCl缓冲溶液中的降解率远小于纯Ca2SiO4涂层,其降解率随Ca2SiO4含量增加而增加。通过优化涂层各组分含量,可望获得生物活性好而又抗生理体液侵蚀的长效稳定涂层。 CaO stabilized ZrO2 powders were calcined with certain content of SiO2 at 1400 ℃,the obtained powders were used to fabricate coatings with different Ca2SiO4 contents(mass fraction: 20%,40%,60%) by atmospheric plasma spraying technology.The morphology and phase composition of the ZrO2 modified CaO-SiO2 coatings were characterized by X-ray diffraction(XRD),electronic probe microanalyzer(EPMA) and energy dispersive spectrometry(EDS).The composite coatings were immersed in simulated body fluid(SBF) and Tris-HCl buffer solution for the in vitro appraisement of bioactivity and stability.The results show that the formation ability of apatite on the surface of the coatings is related with Ca2SiO4 content in the coatings.The apatite precipitation becomes difficult on the coating's surface with Ca2SiO4 content lower than 40%.The dissolution rate of the coatings in Tris-HCl solution increases with increase of Ca2SiO4 content.
出处 《复合材料学报》 EI CAS CSCD 北大核心 2011年第1期77-81,共5页 Acta Materiae Compositae Sinica
关键词 硅酸钙 ZrO2改性 等离子体喷涂 复合涂层 生物活性 降解性能 calcium silicate zirconia modified plasma spraying composite coatings bioactivity dissolution
  • 相关文献

参考文献17

  • 1Yang Y Z, Tian J M, Chen Z Q, et al. Preparation of graded porous titanium coatings on titanium implant materials by plasma spraying[J]. J Biomed Mater Res, 2000, 52(2): 333-337.
  • 2Anselme K, Linez P, Bigerelle M, et al. The relative influence of the topography and chemistry of TiAl6V4 surfaces on osteoblastic cell behaviour[J]. Biomaterials, 2000, 21(15): 1567-1577.
  • 3Nishiguchi S, Kato H, Neo M, et al. Alkali and heat-treated porous titanium for orthopedic implants[J]. J Biomed Mater Res, 2001, 54(2): 198-208.
  • 4Suchanck W, Yoshimura M. Processing and properties of hydroxyapatite based biomaterials for use as hard tissue replacement implants[J]. J Mater Res, 1998, 13(1): 94-117.
  • 5Khor K A, Gu Y W, Pan D, Cheang P. Microstructure and mechanical properties of plasma sprayed HA/YSZ/Ti-6Al-4V composite coatings[J]. Biomaterials, 2004, 25(18): 4009-4017.
  • 6Liu Xuanyong, Morra Marco, Carpi Angelo, Li Bao’e. Bioactive calcium silicate ceramics and coatings[J]. Biomedicine & Pharmacotherapy, 2008, 62(8): 526-529.
  • 7Xue W, Liu X, Zheng X, Ding X. In vivo evaluation of plasma-sprayed wollastonite coating[J]. Biomaterials, 2005, 26(17): 3455-3460.
  • 8Xue Weichang, Liu Xuanyong, Zheng Xuebin, Ding Chuanxian. Plasma-sprayer diopside coatings for biomedical applications[J]. Surface & Coatings Technology, 2004, 185(2/3): 340-345.
  • 9De Aza P N, Fernandez-Pradas J M, Serra P. In vitro bioactivity of laser ablation pseudowollastonite coating[J]. Biomaterials, 2004, 25(11): 1983-1990.
  • 10Balamurugan A, Balossier G, Kannan S, et al. Electrochemical and structural characterization of zirconia reinforced hydroxyapatite bioceramic sol-gel coatings on surgical grade 316L SS for biomedical applications[J]. Ceramics International, 2007, 33(4): 605-614.

二级参考文献37

共引文献20

同被引文献53

引证文献3

二级引证文献11

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