The coating of metals with ceramic oxides via colloidal intermediates

Nelson, Robert L.; Ramsay, J.D.F.; Woodhead, J.L.; Cairns, J.A.; Crossley, JG

doi:10.1016/0040-6090(81)90517-4

Cited by 90 publications

(17 citation statements)

References 3 publications

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“…The coating thicknesses were calculated from weight measurements, assuming fully dense CeO2, i.e., 7.1 g/cm 3 [7]. If not additionally indicated, coatings described below were obtained from sol containing 5 g CeOz/dm 3.…”

Section: Methodsmentioning

confidence: 99%

The nanocrystalline ceria sol-Gel coatings for high temperature applications

Czerwiński

Szpunar

1997

J Sol-Gel Sci Technol

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Abstract. Sol-gel technology was utilized to produce nanocrystalline thin films of CeO2 on substrates with different oxidation resistance at high temperatures. After deposition, the coatings were composed of CeOz crystallites with a size of 5 nm, randomly oriented on all the substrates. The annealing of gel deposited on Pt and Si substrates was accompanied by evaporation of water and other species and followed by growth of crystallites, without formation of any evident texture. Conversely, the annealing of coatings deposited on easy oxidizing substrates of Ni, Cr, or Ni-Cr alloys resulted in incorporation of CeO2 crystallites into growing native oxide, and in slowing the oxidation rate. Examples of the application of CeOz ceramics as coatings deposited on selected metals and alloys for improving their oxidation performance are presented.

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Section: Methodsmentioning

confidence: 99%

The nanocrystalline ceria sol-Gel coatings for high temperature applications

Czerwiński

Szpunar

1997

J Sol-Gel Sci Technol

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“…5) is characterized by the presence of water even after number i.e. from 3431 and 1587 cm À1 in Ce/Ti (1:1) to 3372 and 1583 cm À1 in the Ce/Ti (1:2) film is a manifestation of the fact that higher degree of hydrolysis and condensation has taken place in the latter, which has consequently led to their reduced free water content in view of the removal of small groups like H 2 (1:1) and 1583 cm À1 (1:2). The shift to lower wave number of this band is indicative of the weakening of the bond assigned to the in-plane bending motion of the water molecules upon annealing.…”

Section: Structural and Microstructural Analysismentioning

confidence: 98%

“…A counter electrode exhibiting complete transparency in the intercalated/deintercalated states can be used as a passive counter electrode in electrochromic devices. Cerium oxide (CeO 2 ) based systems prepared by techniques like e-beam evaporation, reactive magnetron sputtering, evaporation and the sol-gel process have found application [1] in the fields such as optical 0022 additives, catalysis [2], ionic conduction and fuel cells [3]. It is a semiconductor possessing band gap of $3.2 eV.…”

Section: Introductionmentioning

confidence: 99%

Influence of aging and composition of the precursor sol on the properties of CeO2–TiO2 thin films for electrochromic applications

Verma

Singh

Bakhshi

et al. 2005

Journal of Non-Crystalline Solids

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“…It is a highly efficient UV absorber and is used as an additive for glass for protecting light-sensitive materials (Hampel 1960). Films are capable of corrosion protection of metals and as coating for use as a catalyst support (Nelson et al 1981). The ability of cerium-doped glass to block out UV light is utilized in the manufacturing of medical glassware and aerospace windows.…”

Section: Introductionmentioning

confidence: 99%

Optical properties of CeO2 thin films

2007

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Cerium oxide (CeO 2 ) thin films have been prepared by electron beam evaporation technique onto glass substrate at a pressure of about 6 × 10 -6 Torr. The thickness of CeO 2 films ranges from 140-180 nm. The optical properties of cerium oxide films are studied in the wavelength range of 200-850 nm. The film is highly transparent in the visible region. It is also observed that the film has low reflectance in the ultra-violet region. The optical band gap of the film is determined and is found to decrease with the increase of film thickness. The values of absorption coefficient, extinction coefficient, refractive index, dielectric constant, phase angle and loss angle have been calculated from the optical measurements. The X-ray diffraction of the film showed that the film is crystalline in nature. The crystallite size of CeO 2 films have been evaluated and found to be small. The experimental d-values of the film agreed closely with the standard values.

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The coating of metals with ceramic oxides via colloidal intermediates

Cited by 90 publications

References 3 publications

The nanocrystalline ceria sol-Gel coatings for high temperature applications

The nanocrystalline ceria sol-Gel coatings for high temperature applications

Influence of aging and composition of the precursor sol on the properties of CeO2–TiO2 thin films for electrochromic applications

Optical properties of CeO2 thin films

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