Analysis of powdered tungsten carbide hard-metal precursors and cemented compact tungsten carbides using laser-induced breakdown spectroscopy

• Authors: NOVOTNÝ Karel; STAŇKOVÁ Alice; HAKKANEN Heiki; KORPPI-TOMMOLA Jouko; OTRUBA Vítězslav; KANICKÝ Viktor
• Year of publication: 2007
• Type: Article in Periodical
• Magazine / Source: Spectrochimica Acta Part B: Atomic Spectroscopy
• MU Faculty or unit: Faculty of Science
• Field: Analytic chemistry
• Keywords: Laser-induced breakdown spectroscopy (LIBS); Nd:YAG laser; Excimer laser; tungsten carbide; bulk analysis
• Description: Laser-induced breakdown spectroscopy (LIBS) has been applied to the direct analysis of powdered tungsten carbide hard-metal precursors and cemented tungsten carbides. The aim of this work was to examine the possibility of quantitative determination of the niobium, titanium, tantalum and cobalt. The investigated samples were in the form of pellets, pressed with and without binder (powdered silver) and in the form of cemented tungsten carbides. Several lasers and detection systems were utilized.

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