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Related Experiment Videos

[Hydroxyapatite bioactive coating on carbon/carbon composites].

Jinling Sui1, Musen Li, Yupeng Lü

  • 1School of Materials Science and Engineering, Shandong University, Jinan 250061, China.

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi = Journal of Biomedical Engineering = Shengwu Yixue Gongchengxue Zazhi
|May 12, 2005
PubMed
Summary

Plasma spraying created a hydroxyapatite (HA) coating on carbon/carbon (C/C) composites. The resulting HA coating exhibited a rough surface and a shear strength of 7.15 MPa.

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Area of Science:

  • Materials Science
  • Biomaterials Engineering

Context:

  • Carbon/carbon (C/C) composites offer excellent mechanical properties but require surface modification for biomedical applications.
  • Hydroxyapatite (HA) is a biocompatible ceramic with high osteoconductivity, making it suitable for bone regeneration.

Purpose:

  • To develop a simple plasma spraying technique for coating hydroxyapatite (HA) onto carbon/carbon (C/C) composite substrates.
  • To characterize the morphology, phase composition, and shear strength of the HA coating on C/C composites.

Summary:

  • A straightforward plasma spraying method successfully coated hydroxyapatite (HA) onto carbon/carbon (C/C) composite substrates.
  • Scanning electron microscopy (SEM) revealed a rough surface morphology for the HA coating.
  • X-ray diffractometry (XRD) indicated the presence of an amorphous phase, transformable to crystalline HA upon heat treatment.

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  • The shear strength of the HA coating on the C/C composite substrate was measured to be 7.15 MPa.

    • Impact:

    • The study demonstrates a viable method for enhancing the biocompatibility of C/C composites through HA coating.
    • The findings provide crucial data on the physical and mechanical properties of HA-coated C/C composites for potential orthopedic or dental applications.