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5. Before striking gold in gold-ruby glass

Author

Wagner, F. E., Haslbeck, S., Stievano, L., Calogero, S., Pankhurst, Q. A., and Martinek, K. -P.

Subjects
Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

Author(s): F. E. Wagner [1]; S. Haslbeck [1]; L. Stievano [2]; S. Calogero [2]; Q. A. Pankhurst [3]; K. -P. Martinek [4] The red colour of gold-ruby glass is caused [...]

Published
2000
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7. Formation of gold nanoparticles in gold ruby glass: The influence of tin.

Author

Lippens, P. -E., Jumas, J. -C., Génin, J. -M. R., Haslbeck, S., Martinek, K. -P., Stievano, L., and Wagner, F. E.

Abstract

197Au and 119Sn Mössbauer spectroscopy was used to study the effect of tin on the formation of gold nanoparticles in gold ruby glasses containing 200 ppm of gold and up to 2 wt.% of tin. The tin was found to speed up the formation of the metallic nanoparticles during annealing at temperatures around 600°C and to cause very small particles with sizes of only a few nanometres to be formed, whereas fewer but larger particles are formed in the absence of tin. This has consequences for the colour of the glasses, which changes from purple red for virtually tin-free to brown for tin-rich glasses. [ABSTRACT FROM AUTHOR]

Published
2007
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