Published date: Oct 08 2018

Journal Title: KnE Engineering

Issue title: Breakthrough directions of scientific research at MEPhI: Development prospects within the Strategic Academic Units

Pages: 228–235

DOI: 10.18502/keg.v3i6.2998

E D Vovchenko

S A Kratsakrat@mephi.ru

Yu M Gasparyan

A P Melekhov

A Prishvitsyn

V A Kurnaev

Laser-induced breakdown spectroscopy (LIBS) and time of flight (TOF) mass spectrometry of laser-produced ions were tested for ex-situ analysis of lithium co-deposited layers produced by plasma deposition. It was found that LIBS provides an adequate way to observe and measure lithium content in thin co-deposited layers of about 1 µm thickness. TOF mass spectrometry data of the same layers was compared with LIBS. TOF mass spectrometry provided a better resolution; however, the simplicity of LIBS setup and the rate of measurement (less than one minute per measurement) makes it more attractive. Argon was observed in the co-deposited layers, indicating that it, and likely other inert gases, can remain trapped in lithium layers even after a prolonged exposure to and chemical reaction with atmospheric air.

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