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Femtosecond laser induced fixation of calcium alkali phosphate ceramics on titanium alloy bone implant material

Paper ID Volume ID Publish Year Pages File Format Full-Text
2298 107 2010 7 PDF Available
Title
Femtosecond laser induced fixation of calcium alkali phosphate ceramics on titanium alloy bone implant material
Abstract

Femtosecond lasers provide a novel method of attaching bioceramic material to a titanium alloy, thereby improving the quality of bone implants. The ultrashort 30 fs laser pulses (790 nm wavelength) penetrate a thin dip-coated layer of fine ceramic powder, while simultaneously melting a surface layer of the underlying metal. The specific adjustment of the laser parameters (pulse energy and number of pulses per spot) avoids unnecessary melting of the bioactive calcium phosphate, and permits a defined thin surface melting of the metal, which in turn is not heated throughout, and therefore maintains its mechanical stability. It is essential to choose laser energy densities that correspond to the interval between the ablation fluences of both materials involved: about 0.1–0.4 J cm−2. In this work, we present the first results of this unusual technique, including laser ablation studies, scanning electron microscopy and optical microscope images, combined with EDX data.

Keywords
Bone implant; Bioceramic coating; Titanium; Calcium phosphate; Femtosecond laser
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Femtosecond laser induced fixation of calcium alkali phosphate ceramics on titanium alloy bone implant material
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 6, Issue 8, August 2010, Pages 3318–3324
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us