Paper Title:
The Pyrocarbon Deposition Techniques of Mechanical Heart Valve Prostheses
  Abstract

The structure and property of pyrocarbon varies widely with different deposition conditions. The isotropic carbon which can only been deposited in the bed of fluidized particles is very important in biomedical fields, for instance, it is often used as the coating of artificial heart valve components. The deposition of isotropic pyrocarbon containing silicon is experimented in fluidized bed over a wide range of deposition conditions. The results show that bed temperature influences strongly average coating rate, coating density, silicon content and coating micro-hardness. Propane concentration has a much effect on coating density, carbon matrix density and isotropic characteristics. Total gas flow rate and inlet dimension of fluidized bed affect the formation of fluidized bed.

  Info
Periodical
Edited by
Long Chen, Yongkang Zhang, Aixing Feng, Zhenying Xu, Boquan Li and Han Shen
Pages
749-752
DOI
10.4028/www.scientific.net/KEM.464.749
Citation
J. H. Zhang, X. Chen, "The Pyrocarbon Deposition Techniques of Mechanical Heart Valve Prostheses", Key Engineering Materials, Vol. 464, pp. 749-752, 2011
Online since
January 2011
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