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等离子喷涂制备HA/ZrO2复合涂层

郑学斌; 丁传贤   

  1. 中国科学院上海硅酸盐所, 上海 200050
  • 收稿日期:1999-04-27 修回日期:1999-05-13 出版日期:2000-04-20 网络出版日期:2000-04-20

Plasma Sprayed HA/ZrO2 Composite Coatings

ZHENG Xue-Bin; DING Chuan-Xian   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China
  • Received:1999-04-27 Revised:1999-05-13 Published:2000-04-20 Online:2000-04-20

摘要: 采用等离子喷涂技术,在Ti-6Al-4V基体上成功地制备了羟基磷灰石/氧化锆(HA/ZrO)复合涂层,对涂层的微观结构、相组成和结合强度进行了研究,并以模拟体液试验评估涂层的生物活性.结果表明,复合涂层具有较为均匀的微观结构.HA/ZrO复合涂层的结合强度明显高于 HA涂层, HA/60 wt% ZrO涂层的结合强度高达 28.5MPa,为 HA涂层的 2.2倍.复合涂层在模拟体液中浸泡一段时间后,表面覆盖一层碳酸磷灰石(carbonate-apatite),表明涂层具有良好的生物活性.

关键词: HA涂层, ZrO2, 结合强度, 模拟体液试验, 等离子喷涂

Abstract: HA/ZrO2 composite coatings on Ti-6Al-4V substrate were successfully deposited via plasma spraying.
The surface morphology, phase composition and bonding strength of coatings were investigated. Simulated body fluid (SBF) tests were carried out to
evaluate the bioactivity of the coatings. The results obtained indicate that the bonding strength of HA/ZrO2 composite coatings is much higher
than that of HA coating. The bonding strength of HA/ZrO2 60 wt% composite coating is even high to 28.5 MPa, which is more than twice
that of HA coating. In SBF test, the coating surface was covered by carbonate-apatite, which indicates that HA/ZrO2 composite coatings
possess good bioactivity.

Key words: HA, ZrO2, bonding strength, SBF test, plasma spraying

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