Ni-Al2O3 selective cermet coatings for photothermal conversion up to 500°C

T. Stephen Sathiaraj, R. Thangaraj, H. Al Sharbaty, M. Bhatnagar, O. P. Agnihotri

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Spectrally selective Ni-Al2O3 composite films were prepared by r.f. planar magnetron sputtering using hot-pressed targets of two different compositions. The composition of the films were varied by co-sputtering the target with additional nickel pellets distributed uniformly on the target. The composition of the films were analysed by energy-dispersive X-ray analysis. Optical simulations were carried out with the experimentally measured n and k and the published n and k of the metallic substrate. R.f.-sputtered SiO2 and Al2O3 were used as antireflection coatings. From the computer optimization studies we found that α = 0.94 and ε(100°C) = 0.07 could be obtained with 650 Å of Ni-Al2O3 (f = 0.61) antireflected with 780 Å SiO2 on a nickel-coated glass substrate. When molybdenum-coated nickel-plated stainless steel substrates were used, the films were found to be stable up to 500°C in air.

Original languageEnglish
Pages (from-to)241-254
Number of pages14
JournalThin Solid Films
Volume190
Issue number2
DOIs
Publication statusPublished - Sep 15 1989

Fingerprint

Cermet Cements
photothermal conversion
Nickel
coatings
Coatings
Substrates
Chemical analysis
Antireflection coatings
Molybdenum
Energy dispersive X ray analysis
nickel steels
Stainless Steel
nickel
Composite films
Magnetron sputtering
Sputtering
antireflection coatings
Stainless steel
pellets
molybdenum

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Sathiaraj, T. Stephen ; Thangaraj, R. ; Al Sharbaty, H. ; Bhatnagar, M. ; Agnihotri, O. P. / Ni-Al2O3 selective cermet coatings for photothermal conversion up to 500°C. In: Thin Solid Films. 1989 ; Vol. 190, No. 2. pp. 241-254.
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abstract = "Spectrally selective Ni-Al2O3 composite films were prepared by r.f. planar magnetron sputtering using hot-pressed targets of two different compositions. The composition of the films were varied by co-sputtering the target with additional nickel pellets distributed uniformly on the target. The composition of the films were analysed by energy-dispersive X-ray analysis. Optical simulations were carried out with the experimentally measured n and k and the published n and k of the metallic substrate. R.f.-sputtered SiO2 and Al2O3 were used as antireflection coatings. From the computer optimization studies we found that α = 0.94 and ε(100°C) = 0.07 could be obtained with 650 {\AA} of Ni-Al2O3 (f = 0.61) antireflected with 780 {\AA} SiO2 on a nickel-coated glass substrate. When molybdenum-coated nickel-plated stainless steel substrates were used, the films were found to be stable up to 500°C in air.",
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Sathiaraj, TS, Thangaraj, R, Al Sharbaty, H, Bhatnagar, M & Agnihotri, OP 1989, 'Ni-Al2O3 selective cermet coatings for photothermal conversion up to 500°C', Thin Solid Films, vol. 190, no. 2, pp. 241-254. https://doi.org/10.1016/0040-6090(89)90914-0

Ni-Al2O3 selective cermet coatings for photothermal conversion up to 500°C. / Sathiaraj, T. Stephen; Thangaraj, R.; Al Sharbaty, H.; Bhatnagar, M.; Agnihotri, O. P.

In: Thin Solid Films, Vol. 190, No. 2, 15.09.1989, p. 241-254.

Research output: Contribution to journalArticle

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T1 - Ni-Al2O3 selective cermet coatings for photothermal conversion up to 500°C

AU - Sathiaraj, T. Stephen

AU - Thangaraj, R.

AU - Al Sharbaty, H.

AU - Bhatnagar, M.

AU - Agnihotri, O. P.

PY - 1989/9/15

Y1 - 1989/9/15

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