Ceramic Black Pigments Based on Chromium-Nickel Spinel NiCr2O4

The possibility of obtaining black pigment based on nickel chromite (NiCr 2 O 4 ) is examined. The morphological, granulometric, x-ray structural, and optical characteristics of synthesized crystalline powders of chromium nickel spinel are investigated. Upon spontaneous crystallization at temperatur...

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Bibliographic Details
Published in:Glass and ceramics 2017-11, Vol.74 (7-8), p.236-239
Main Authors: Vasil’kov, O. O., Barinova, O. P., Kirsanova, S. V., Marnautov, N. A., Elfimov, A. B.
Format: Article
Language:English
Subjects:
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Chromite
Chromium
Composites
Crystallization
Glass
Glazes
Materials Science
Natural Materials
Nickel
Optical properties
Pigments
Reflectance
Reflection
Spinel
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Summary:The possibility of obtaining black pigment based on nickel chromite (NiCr 2 O 4 ) is examined. The morphological, granulometric, x-ray structural, and optical characteristics of synthesized crystalline powders of chromium nickel spinel are investigated. Upon spontaneous crystallization at temperature 950°C nickel chromite crystallizes in the spinel structure Fd3m with crystals ranging in size from 1.29 to 84 μm (predominantly in the form of an octahedron). The diffuse reflection spectra showed high emissivity of NiCr 2 O 4 : the diffuse reflection coefficient ranges from 2.65 to 4.81% in the range 320 – 1080 nm. Black glazes based on nickel chromite were obtained; the optimal weight content of the pigment is 6 – 8%.
ISSN:0361-7610
1573-8515
DOI:10.1007/s10717-017-9970-8