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Lanthanoides in glass and glass ceramics

: Meinhardt, Jürgen; Kilo, Martin; Somorowsky, Ferdinand; Hopp, Werner


Physical sciences reviews 2 (2017), No.3
ISSN: 2365-659X
Journal Article
Fraunhofer ISC ()
Seltene Erden; Lanthanide; Analytik; Glas; Glaskeramik; ICP-OES; Rasterelektronenmikroskopie (REM); Transmissionselektronenmikroskopie (TEM); WDX

Many types of glass contain lanthanoides; among them, special glass for optical applications is the one with the highest content of lanthanoides. The precise determination of the lanthanoides’ concentration is performed by inductively coupled plasma-optical emission spectrometry (ICP-OES). However, up to now, there are no established standard processes guaranteeing a uniform approach to the lanthanoide analysis. The knowledge of the lanthanoides’ concentrations is necessary on the microscale in some cases, especially if a suitable separation and recycling procedure is to be applied. Here, the analysis is performed by energy-dispersive X-ray (EDX) or wavelength-dispersive X-ray (WDX) analytics in the scanning electron microscope.