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

Cowpe, J.S., Moorehead, R.D., Moser, D., Astin, J.S., Karthikeyan, S., Crofts, G., Kilcoyne, Susan H. and Pilkington, R.D. (2011) Hardness determination of bio-ceramics using laser-induced breakdown spectroscopy. Spectrochimica Acta part B, 66 (3-4). pp. 290-294. ISSN 0584-8547

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    Abstract

    Laser-Induced Breakdown Spectroscopy (LIBS) was applied to the analysis of bioceramic
    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 lineto-
    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.

    Item Type: Article
    Subjects: Q Science > QC Physics
    Schools: School of Applied Sciences
    Related URLs:
    Depositing User: Susan Kilcoyne
    Date Deposited: 06 Dec 2011 12:17
    Last Modified: 06 Dec 2011 12:30
    URI: http://eprints.hud.ac.uk/id/eprint/11989

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