Hardness determination of bio-ceramics using Laser-Induced Breakdown Spectroscopy

被引：53

作者：

Cowpe, J. S. ^{[1
]}

Moorehead, R. D. ^{[2
]}

Moser, D. ^{[2
]}

Astin, J. S. ^{[2
]}

Karthikeyan, S. ^{[2
]}

Kilcoyne, S. H. ^{[2
]}

Crofts, G. ^{[3
]}

Pilkington, R. D. ^{[2
]}

机构：

[1] Univ Manchester, Isotope Geochem & Cosmochem Grp, Sch Earth Atmospher & Environm Sci, Manchester M13 9PL, Lancs, England

[2] Univ Salford, Mat & Phys Res Ctr, Salford M5 4WT, Lancs, England

[3] Univ Salford, Sch Hlth Sport & Rehabil Sci, Salford M5 4WT, Lancs, England

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 2011年 / 66卷 / 3-4期

基金：

英国医学研究理事会;

关键词：

Glass ceramic; Hydroxyapatite; LIBS; Laser ablation; Plasma; INDUCED PLASMA DIAGNOSTICS; IONOMER GLASS-CERAMICS; FRACTURE-TOUGHNESS; CALCIFIED TISSUES; ELECTRON-DENSITY; ABLATION; SPECTROMETRY; TEMPERATURE; TECHNOLOGY; SILICON;

D O I：

10.1016/j.sab.2011.03.007

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

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 T-e 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 T-e offers greater reproducibility than Vickers hardness measurements, under the conditions considered here. The validity of spectroscopic diagnostics based on LTE was confirmed. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：290 / 294

页数：5

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