Microstructural Characterization of Silicon-Alloyed Pyrolytic Carbon for Mechanical Heart Valves

Jian Hui Zhang; Hai Bo Sun; Gen Ming Wang; Peng Hai Guo

doi:10.4028/www.scientific.net/AMR.230-232.420

Paper Titles

Influence of Aggregate Volume Ratio of Mortar on the Migration of Cations Using the Accelerated Lithium Migration Technique
p.400

The Effect and Application of Different Turbulence Models on the Design of Inertial Stage
p.405

Simulation of Loss of Coolant Accident in an Integral Pressurized Water Reactor (IPWR)
p.410

The Research on the Effects of the Multilayer Gauze Stage with Different Layers
p.415

Microstructural Characterization of Silicon-Alloyed Pyrolytic Carbon for Mechanical Heart Valves
p.420

Role of Risk Manager for Online Risk Monitoring
p.424

Pulse Electrodeposition of α-Nickel Hydroxide with Flower-Like Nanostructure for Supercapacitors
p.429

Analysis and Solution of Pin Connector Stresses
p.435

Research and Practice of Measurement Technology on Roundness Error
p.440

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 230-232Microstructural Characterization of...

Microstructural Characterization of Silicon-Alloyed Pyrolytic Carbon for Mechanical Heart Valves

Abstract:

Microstructural information obtained for silicon-alloyed pyrolytic carbon coatings used for heart valves using X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy is described. The coatings consist of two phases, pyrolytic carbon and β silicon carbide, whose crystallite sizes are small. The coatings are principally composed of spherical particles that are from 300 to 1000 nm in diameter. These spherical particles, between which there are occasionally pores, are welded by laminar carbons. The silicon, content of which is moderate, disperses uniformly in the coatings.

You might also be interested in these eBooks

Frontiers of Manufacturing Science and Measuring Technology

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 230-232)

Pages:

420-423

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.230-232.420

Citation:

Cite this paper

Online since:

May 2011

Authors:

Jian Hui Zhang, Hai Bo Sun, Gen Ming Wang, Peng Hai Guo

Keywords:

Electron Mapping, Heart Valve, Microstructure, Pyrolytic Carbon, Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD), X-Ray Energy Dispersive Spectroscopy

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] ISO 5840, International Standard Cardiovascular Implants - Cardiac Valve Prostheses[S].

Google Scholar

[2] Jianhui Zhang: Journal of Lanzhou Railway University Vol. 22 (2003), pp.119-121, in Chinese.

Google Scholar

[3] Damu Zhang, Chunfang Fan and Lijun Li: Beijing Biomedical Engineering Vol. 9 (1990), pp.1-22, in Chinese.

Google Scholar

[4] O.Agnès: Carbon Vol. 40 (2002), pp.7-24.

Google Scholar

[5] J.L. Kaae: Carbon Vol. 23 (1985), pp.665-673.

Google Scholar

[6] J.L. Ely, M.R. Emken, J.A. Accuntius, D.S. Wilde, A.D. Haubold, R.B. More and J.C. Bokros: Journal of Heart Valve Disease Vol. 7 (1998), P. 626-632.

Google Scholar