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Black chrome selective surfaces I. Deposit growth and properties

Authors
Journal
Solar Energy Materials
0165-1633
Publisher
Elsevier
Publication Date
Volume
6
Issue
2
Identifiers
DOI: 10.1016/0165-1633(82)90017-x

Abstract

Abstract The growth mechanisms and optical properties of Chromonyx R, Econochrome R and Tetrachromate black chrome selective surfaceshave been investigated as a function of deposition time. Measurements of deposit topography and hemispherical spectral reflectance indicate that the deposition of Chromonyx R coatings occurs by a single stage process in which particulate deposits are formed. Econochrome R and Tetrachromate deposition is characterised by a two stage process. In the first stage thin, continuous deposits are formed. With increasing plating time both deposits are found to develop a particulate structure. Substantial shrinkage is found to occur in thick Econochrome R and Tetrachromate deposits, resulting in the formation of cracks and deposit-substrate separation.

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