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Hardness determination of bio-ceramics using laser-induced breakdown spectroscopy

Cowpe, JS; Moorehead, RD; Moser, D; Astin, JS; Karthikeyan, S; Kilcoyne, SH; Crofts, G; Pilkington, RD

Authors

JS Cowpe

RD Moorehead

D Moser

JS Astin

S Karthikeyan

SH Kilcoyne

G Crofts

RD Pilkington



Abstract

Laser-Induced Breakdown Spectroscopy (LIBS) was applied to the analysis of bio-ceramic samples. The relationship between sample hardness and LIBS plasma properties was investigated, with comparison to conventional Vickers hardness measurements. The plasma excitation temperature Te was determined using the line-to-continuum ratio for the Si (I) 288.16 nm emission line; we have demonstrated a linear relationship between sample surface hardness and plasma temperature. Results indicate that hardness determination based on measurements of Te offers greater reproducibility than Vickers hardness measurements, under the conditions considered here. The validity of spectroscopic diagnostics based on LTE was confirmed.

Citation

Cowpe, J., Moorehead, R., Moser, D., Astin, J., Karthikeyan, S., Kilcoyne, S., …Pilkington, R. (2011). Hardness determination of bio-ceramics using laser-induced breakdown spectroscopy. Spectrochimica Acta Part B: Atomic Spectroscopy, 66(3-4), 290-294. https://doi.org/10.1016/j.sab.2011.03.007

Journal Article Type Article
Publication Date Mar 1, 2011
Deposit Date Aug 24, 2011
Publicly Available Date Aug 24, 2011
Journal Spectrochimica Acta Part B: Atomic Spectroscopy
Print ISSN 0584-8547
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 66
Issue 3-4
Pages 290-294
DOI https://doi.org/10.1016/j.sab.2011.03.007
Keywords Glass ceramic, hydroxyapatite, LIBS, laser ablation, plasma
Publisher URL http://dx.doi.org/10.1016/j.sab.2011.03.007

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