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Published on: February 27, 2013
Hydroxyapatite coatings: a comparative study between plasma-spray and pulsed laser deposition techniques
F J García-Sanz1, M B Mayor, J L Arias
1Departamento de Física Aplicada, Universidade de Vigo, Lagoas-Macrosende 9, 36.200 Vigo, Spain.
Journal of Materials Science. Materials in Medicine
|September 7, 2004
Summary
Pulsed-laser deposition (PLD) offers superior hydroxyapatite coatings for biomedical applications compared to traditional plasma spray (PS). PLD overcomes drawbacks of PS, making it a promising alternative for dental and orthopaedic implants.
Area of Science:
- Biomaterials Science
- Materials Engineering
- Surface Science
Background:
- Hydroxyapatite coatings are crucial for dental and orthopaedic implants.
- Plasma spray (PS) is the current commercial standard for applying these coatings.
- Pulsed-laser deposition (PLD) shows potential for biomedical applications.
Purpose of the Study:
- To compare hydroxyapatite coatings produced by PS and PLD.
- To evaluate the suitability of PLD as an alternative to PS for biomedical uses.
Main Methods:
- Coating production using plasma spray (PS) and pulsed-laser deposition (PLD).
- Characterization via X-ray diffraction (crystallinity), scanning electron microscopy (morphology), and pull testing (tensile strength).
Main Results:
- PLD-produced coatings demonstrated favorable characteristics.
- PLD overcomes several limitations associated with the PS technique.
- Tensile strength and morphological properties were assessed for both techniques.
Conclusions:
- Pulsed-laser deposition (PLD) is a strong candidate to replace plasma spray (PS) for hydroxyapatite coatings in biomedical applications.
- PLD offers advantages over PS, addressing existing drawbacks.
- Further research into PLD for implant coatings is warranted.
