Paper Title:
Microstructure and Mechanical Performances of Plasma-Sprayed Functionally Gradient HA-ZrO2-Bioglass Coatings
  Abstract

For practical applications such as artifical joints and dental implants, there is a strong demand for hydroxyapatite coatings with excellent performances to ensure long-term fixation. In the present study, functionally gradient HA-ZrO2-Bioglass coatings were prepared using net-energy controlled plasma spraying technology. The structural characteristics andmechanical performances of the coatings were examined by scanning electron microscopy (SEM), X-ray diffraction (XRD) and nanoindentation. The results showed that: (1) Pore sizes and compositions of the coatings changed gradually along the vertical substrate, crystal HA with few calcium phosphates was presented in the heat-treated coatings. (2) Surface of the coating was very rough with nano-sized crystalline grains and micropores; (3) Young’s modulus and hardness changed gradually at the range of coating-Ti6Alo4V interface. Compared with HA coatings, the tensile adhesive strength of the functionally graded HA-ZrO2-Bioglass coatings reached 38.6 MPa, much higher than that of single HA coatings.

  Info
Periodical
Key Engineering Materials (Volumes 280-283)
Edited by
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li
Pages
1893-1898
DOI
10.4028/www.scientific.net/KEM.280-283.1893
Citation
C. Y. Ning, Y. J. Wang, W.W. Lu, X. F. Chen, G. Wu, N. R. Zhao, "Microstructure and Mechanical Performances of Plasma-Sprayed Functionally Gradient HA-ZrO2-Bioglass Coatings", Key Engineering Materials, Vols. 280-283, pp. 1893-1898, 2005
Online since
February 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Mu Qin Li, Da Shan Shang, Chen Ma, Shi Qin Yang
Abstract:Bioactive composite coatings containing sub-layer and working-layer with different ingredients were prepared using subsonic thermal spraying...
1619
Authors: Cheng Yun Ning, Ying Jun Wang, Xiao Feng Chen, Jian Dong Ye, Gang Wu, Na Ru Zhao
Abstract:In the present study, bioactive functional gradient coatings were prepared using net-energy controlled plasma spraying technology. The...
1676
Authors: Chung Wei Yang, Truan Sheng Lui, Edward Chang
Abstract:The effect of autoclaving hydrothermal treatment on the characteristics of plasma-sprayed hydroxyapatite (HA) coatings on the Ti-6Al-4V...
147
Authors: Chung Wei Yang, Truan Sheng Lui
Abstract:Experimental results showed that both of commercial pure titanium (CP-Ti) and yttria-stabilized zirconia (YSZ) intermediate layers...
1007
Authors: R. Ahmed, Nadimul Haque Faisal, Stefan M. Knupfer, Anna Maria Paradowska, Michael E. Fitzpatrick, Khiam Aik Khor, Jan Cizek
Abstract:Residual strains in plasma sprayed and heat-treated hydroxyapatite (HA) coatings deposited on a titanium alloy (Ti-6Al-4V) substrate were...
309