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Modifications of Hydroxyapatite properties by nanosecond Nd: YAG laser pulses

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Abstract

Lasers unique characteristics can be utilized to enhance hydroxyapatite (HAp) properties by modifying its surface features; namely microhardness and morphology. Laser treatment is a promising route to enhance surface properties of HAp coatings and HAp components. Hydroxyapatite pressed pellets were laser-treated by Q-Switched Nd: YAG nanosecond laser pulses with different laser fluences to alter their surface specifications. A significant increase in laser-treated microhardness was observed compared to the control sample. The use of lasers demonstrated clear improvement of the HAP surface against demineralization. Digital Micro Vickers hardness tester, Atomic Force Microscope, and Scanning Electron Microscope were employed to investigate structural changes and laser-treated depth. New aspects for delaying HAp surface abrasion were explored; showing reduced wear after laser treatment.

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  1. Department of Applied Sciences, University of Technology, Baghdad, Iraq

    Raid A. Ismail, Walid K. Hamoudi & Zinah S. Shakir

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  1. Raid A. Ismail
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  2. Walid K. Hamoudi
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Correspondence to Raid A. Ismail.

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Ismail, R.A., Hamoudi, W.K. & Shakir, Z.S. Modifications of Hydroxyapatite properties by nanosecond Nd: YAG laser pulses. Lasers Manuf. Mater. Process. 7, 305–316 (2020). https://doi.org/10.1007/s40516-020-00123-1

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  • DOI: https://doi.org/10.1007/s40516-020-00123-1

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