Hardness determination of bio-ceramics using laser-induced breakdown spectroscopy
Cowpe, JS, Moorehead, RD, Moser, D, Astin, JS, Karthikeyan, S, Kilcoyne, SH, Crofts, G and Pilkington, RD 2011, 'Hardness determination of bio-ceramics using laser-induced breakdown spectroscopy' , Spectrochimica Acta Part B: Atomic Spectroscopy, 66 (3-4) , pp. 290-294.
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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.
|Uncontrolled Keywords:||Glass ceramic, hydroxyapatite, LIBS, laser ablation, plasma|
|Schools:||Schools > School of Computing, Science and Engineering
Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre (SIRC)
|Journal or Publication Title:||Spectrochimica Acta Part B: Atomic Spectroscopy|
|Depositing User:||Dr Sreejith Karthikeyan|
|Date Deposited:||24 Aug 2011 09:23|
|Last Modified:||30 Nov 2015 23:56|
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