Curry, J.
, Estupinan, E.
, Lapatovich, W.
, Henins, A.
and Shastri, S.
(2012),
Observation of vapor density enhancement of a rare-earth metal-halide in the temperature range relevant to metal-halide lamps, Applied Physics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=908779
(Accessed October 10, 2025)
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Observation of vapor density enhancement of a rare-earth metal-halide in the temperature range relevant to metal-halide lamps
Published
Author(s)
, E. G. Estupinan, W. P. Lapatovich, , S. D. Shastri
Abstract
The total vapor-phase densities of Dy in equilibrium with a DyI$_3$/InI condensate and Tm in equilibrium with a TmI$_3$/TlI condensate have been measured for temperatures between 900 K and 1400 K. The measurements show strong enhancements in rare-earth vapor densities compared to vapors in equilibrium with the pure rare-earth metal-halides DyI$_3$ and TmI$_3$,respectively. The enhancement is attributed to formation of the vapor phase complexes InDyI$_4$ and TlTm$_4$. The measurements were made with x-ray induced fluorescence on the Sector 1-ID beam line at the Advanced Photon Source. The temperature range and salt mixtures are relevant to the operation of metal-halide high-intensity discharge lamps.Citation
Applied Physics Letters
Volume
100
Pub Type
Journals
Download Paper
Keywords
complexing, fluorescence, high-temperature, metal-halide, pressure, rare-earth, salt, vapor, x ray
Citation
Issues
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Created February 22, 2012, Updated February 19, 2017