Paper Title:
The Mechanical Behavior of Water Vapor-Treated HA Coating Produced by Plasma Spraying Technique
  Abstract

Plasma-sprayed hydroxyapatite coating on metal substrate was prepared. Two kind of post-treatment methods were been applied to the coating, treatment in air at 650°C for 30 min and treatment in water vapor at 125°C with a pressure of 0.15MPa for 6 hours. XRD showed that the HA nanocrystals increased after water vapor treatment. The interfacial tensile bond strength between HA and substrate was 45.0±1.82MPa, 39.1±1.27MPa and 30.3±1.61MPa for as-received coatings, water vapor treated coatings and heated in air coatings, respectively. 3 months after implantation in dogs limbs, the push-out strength between implants and bone was 11.27±2.71MPa, 11.63±3.11MPa, 23.92± 2.01MPa and 18.8± 1.82MPa for pure Ti implants, as-received coating implants, water vapor treated implants and heated in air implants, respectively. The results showed that the post-water vapor treated HA coating have better mechanical behavior in vitro and in vivo

  Info
Periodical
Key Engineering Materials (Volumes 288-289)
Edited by
Xingdong Zhang, Junzo Tanaka, Yaoting Yu and Yasuhiko Tabata
Pages
355-358
DOI
10.4028/www.scientific.net/KEM.288-289.355
Citation
Y. Cao, B. Zhang, L. P. Wang, Q. Lin, X. D. Li, C.Y. Bao, J. Y. Chen, B. C. Yang, L. Yang, X. D. Zhang, "The Mechanical Behavior of Water Vapor-Treated HA Coating Produced by Plasma Spraying Technique ", Key Engineering Materials, Vols. 288-289, pp. 355-358, 2005
Online since
June 2005
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Price
$32.00
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