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Analysis of impurity effects on the coloration of corundum by laser-induced breakdown spectroscopy (LIBS)
Ho S.K.
2015
Source PublicationApplied Spectroscopy
ISSN19433530 00037028
Volume69Issue:2Pages:269-276
Abstract

Corundum was analyzed using laser-induced breakdown spectroscopy (LIBS) for impurity effects in their multiple colorings. Qualitative measurements were attained for impurities of chromium, magnesium, iron, and titanium in red, yellow, and blue samples. Moreover, treatment with a beryllium diffusion, which can modify corundum to obtain an attractive color, was tested in the yellow sample. In this work, most of the measurements were acquired using a laser pulse energy of 5 mJ and impurity emissions were appreciable. The signal-to-noise ratios were 11, 6.5, 10, and 4 for the Cr 425.44 nm, Fe 404.58 nm, Be 313.04 nm, and Mg 285.21 nm lines, respectively, for five laser shots. The amount of damage to the corundum samples was also monitored by measuring the craters after laser analysis. It was found that the crater size was about 30 lm after 10 laser shots. As such, the damage to corundum sample is almost imperceptible after the LIBS analysis.

KeywordLaser-induced Breakdown Spectroscopy Corundum Beryllium Diffusion Destructiveness
DOI10.1366/13-07304
URLView the original
Language英语
WOS Research AreaInstruments & Instrumentation ; Spectroscopy
WOS SubjectInstruments & Instrumentation ; Spectroscopy
WOS IDWOS:000348693600010
PublisherSOC APPLIED SPECTROSCOPY, 5320 SPECTRUM DRIVE SUITE C, FREDERICK, MD 21703 USA
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被引频次[WOS]:4   [WOS记录]     [WOS相关记录]
Document TypeJournal article
专题DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
AffiliationUniversidade de Macau
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Ho S.K.. Analysis of impurity effects on the coloration of corundum by laser-induced breakdown spectroscopy (LIBS)[J]. Applied Spectroscopy,2015,69(2):269-276.
APA Ho S.K..(2015).Analysis of impurity effects on the coloration of corundum by laser-induced breakdown spectroscopy (LIBS).Applied Spectroscopy,69(2),269-276.
MLA Ho S.K.."Analysis of impurity effects on the coloration of corundum by laser-induced breakdown spectroscopy (LIBS)".Applied Spectroscopy 69.2(2015):269-276.
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