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Nickel-Phosphorous Development for Total Solar Irradiance Measurement

2016; Cambridge University Press; Volume: 12; Issue: S328 Linguagem: Inglês

10.1017/s1743921317003805

1743-9221

Franciele Carlesso, L. A. Berni, L. E. A. Vieira, Graziela da Silva Savonov, Motoki Nishimori, A. Dal Lago, Edson Luiz de Miranda,

Transition Metal Oxide Nanomaterials

Abstract 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.