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

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.

2011_Spec_Acta_bio_hardness.pdf - Accepted Version

Download (444kB) | Preview


Downloads per month over past year

Add to AnyAdd to TwitterAdd to FacebookAdd to LinkedinAdd to PinterestAdd to Email