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Nickel-Phosphorous Development for Total Solar Irradiance Measurement

Published online by Cambridge University Press:  12 September 2017

F. Carlesso ,
L. A. Berni ,
L. E. A. Vieira ,
G. S. Savonov ,
M. Nishimori ,
A. Dal Lago  and
E. Miranda
F. Carlesso
Affiliation:
National Institute for Space Research, INPE Av. dos Astronautas 1758, 12227-010, São José dos Campos, SP, Brazil email: fccarlesso@gmail.com
L. A. Berni
Affiliation:
National Institute for Space Research, INPE Av. dos Astronautas 1758, 12227-010, São José dos Campos, SP, Brazil email: fccarlesso@gmail.com
L. E. A. Vieira
Affiliation:
National Institute for Space Research, INPE Av. dos Astronautas 1758, 12227-010, São José dos Campos, SP, Brazil email: fccarlesso@gmail.com
G. S. Savonov
Affiliation:
National Institute for Space Research, INPE Av. dos Astronautas 1758, 12227-010, São José dos Campos, SP, Brazil email: fccarlesso@gmail.com
M. Nishimori
Affiliation:
National Institute for Space Research, INPE Av. dos Astronautas 1758, 12227-010, São José dos Campos, SP, Brazil email: fccarlesso@gmail.com
A. Dal Lago
Affiliation:
National Institute for Space Research, INPE Av. dos Astronautas 1758, 12227-010, São José dos Campos, SP, Brazil email: fccarlesso@gmail.com
E. Miranda
Affiliation:
National Institute for Space Research, INPE Av. dos Astronautas 1758, 12227-010, São José dos Campos, SP, Brazil email: fccarlesso@gmail.com
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Abstract

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The development of an absolute radiometer instrument is currently a effort at INPE for TSI measurements. In this work, we describe the development of black Ni-P coatings for TSI radiometers absorptive cavities. We present a study of the surface blackening process and the relationships between morphological structure, chemical composition and coating absorption. Ni-P deposits with different phosphorous content were obtained by electroless techniques on aluminum substrates with a thin zincate layer. Appropriate phosphorus composition and etching parameters process produce low reflectance black coatings.

Keywords

Black Nickel-PhosphorousActive Cavity RadiometersLow Reflectance Coating
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S328: Living Around Active Stars , October 2016 , pp. 221 - 223
Copyright
Copyright © International Astronomical Union 2017 

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