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Characterization of calcium phosphate coatings deposited by Nd:YAG laser ablation at 355 nm: influence of thickness

Paper ID Volume ID Publish Year Pages File Format Full-Text
13424 855 1994 6 PDF Available
Title
Characterization of calcium phosphate coatings deposited by Nd:YAG laser ablation at 355 nm: influence of thickness
Abstract

Calcium phosphate coatings were deposited by pulsed laser ablation with a radiation of 355 nm from a Nd:YAG laser. All the coatings were obtained at the same conditions, but deposition was stopped after different number of pulses to get coatings with different thickness. The influence of thickness in the structural and mechanical properties of the coatings was investigated. Coatings structure was characterised by scanning electron microscopy, grazing incidence X-ray diffractometry and Raman spectroscopy. The mechanical properties were evaluated by scratch test. The morphology of the coatings is dominated by the presence of droplets. The coatings are composed mainly of hydroxyapatite, alpha tricalcium phosphate and amorphous calcium phosphate. Thinner coatings withstand higher loads of failure in the scratch test.

Keywords
Hydroxyapatite; Calcium phosphate coatings; Laser ablation; Scratch test
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Characterization of calcium phosphate coatings deposited by Nd:YAG laser ablation at 355 nm: influence of thickness
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 23, Issue 9, May 2002, Pages 1989–1994
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