Optical properties and electronic structure of the Cu-Zn brasses

Keast, VJ; Ewald, J; De Silva, KSB; Cortie, MB; Monnier, B; Cuskelly, D; Kisi, EH

Optical properties and electronic structure of the Cu-Zn brasses

Keast, VJ Ewald, J De Silva, KSB

Cortie, MB

Monnier, B Cuskelly, D Kisi, EH

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Publication Type:: Journal Article
Citation:: Journal of Alloys and Compounds, 2015, 647 pp. 129 - 135
Issue Date:: 2015-06-29

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Field	Value	Language
dc.contributor.author	Keast, VJ	en_US
dc.contributor.author	Ewald, J	en_US
dc.contributor.author	De Silva, KSB https://orcid.org/0000-0002-3242-4858	en_US
dc.contributor.author	Cortie, MB https://orcid.org/0000-0003-3202-6398	en_US
dc.contributor.author	Monnier, B	en_US
dc.contributor.author	Cuskelly, D	en_US
dc.contributor.author	Kisi, EH	en_US
dc.date.available	2020-05-25T19:06:22Z
dc.date.issued	2015-06-29	en_US
dc.identifier.citation	Journal of Alloys and Compounds, 2015, 647 pp. 129 - 135	en_US
dc.identifier.issn	0925-8388	en_US
dc.identifier.uri	http://hdl.handle.net/10453/37527
dc.description.abstract	© 2015 Elsevier B.V. The color of Cu-Zn brasses range from the red of copper through bright yellow to grey-silver as the Zn content increases. Here we examine the mechanism by which these color changes occur. The optical properties of this set of alloys has been calculated using density functional theory (DFT) and compared to experimental spectroscopy measurements. The optical response of the low Zn content α-brasses is shown to have a distinctly different origin to that in the higher content β′, γ and ε-brasses. The response of β′-brass is unique in that it is strongly influenced by an overdamped plasmon excitation and this alloy will also have a strong surface plasmon response.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP120102545
dc.relation.ispartof	Journal of Alloys and Compounds	en_US
dc.relation.isbasedon	10.1016/j.jallcom.2015.06.136	en_US
dc.subject.classification	Materials	en_US
dc.title	Optical properties and electronic structure of the Cu-Zn brasses	en_US
dc.type	Journal Article
utslib.citation.volume	647	en_US
utslib.for	0204 Condensed Matter Physics	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0914 Resources Engineering and Extractive Metallurgy	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	647	en_US

Abstract:

© 2015 Elsevier B.V. The color of Cu-Zn brasses range from the red of copper through bright yellow to grey-silver as the Zn content increases. Here we examine the mechanism by which these color changes occur. The optical properties of this set of alloys has been calculated using density functional theory (DFT) and compared to experimental spectroscopy measurements. The optical response of the low Zn content α-brasses is shown to have a distinctly different origin to that in the higher content β′, γ and ε-brasses. The response of β′-brass is unique in that it is strongly influenced by an overdamped plasmon excitation and this alloy will also have a strong surface plasmon response.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/37527