Development of green light filters based on high-resistance oxide glasses colored by transition elements

Glasses in the system Al 2 O 3 –P 2 O 5 –SiO 2 , which are suitable for the green light filters in traffic signal lights, were investigated. The glasses were required to satisfy the following requirements: transmission band maximum at λ max  = 500 nm high heat-resistance, and low CLTE — (41 – 49) × ...

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Bibliographic Details
Published in:Glass and ceramics 2012-05, Vol.69 (1-2), p.50-54
Main Authors: Bogomolova, L. D., Zhachkin, V. A., Pavlushkina, T. K.
Format: Article
Language:English
Subjects:
ALUMINUM OXIDE
CERAMICS
Characterization and Evaluation of Materials
Chemistry and Materials Science
COLOR
Composites
COPPER OXIDE
CUPRIC OXIDE
Cuprite
Glass
GLASSES
Materials Science
Natural Materials
OXIDES
SPECTRA
Sustainable development
TITANIUM DIOXIDE
Traffic signals
Vanadium pentoxide
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Summary:Glasses in the system Al 2 O 3 –P 2 O 5 –SiO 2 , which are suitable for the green light filters in traffic signal lights, were investigated. The glasses were required to satisfy the following requirements: transmission band maximum at λ max  = 500 nm high heat-resistance, and low CLTE — (41 – 49) × 10 –7  K –1 . Transition elements served as colorants; they were introduced into the batch as the oxides TiO 2 , V 2 O 5 , CuO, and MoO 3 in amounts 1 wt.%, as well as their pairs in different combinations. The EPR and optical spectra were investigated. It was shown that glass with the composition (wt.%) 55 P 2 O 5 , 17.1 Al 2 O 3 , 20 SiO 2 , 1.5 La 2 O 3 , 2 ZrO 2 , 2.5 B 2 O 3 , 1.5 MoO 3 , and 0.5 CuO can be recommended for use as heat-resistant green light filters.
ISSN:0361-7610
1573-8515
DOI:10.1007/s10717-012-9412-6