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Synthesis, thermal and spectral characterization of nanosized Ni(x)Mg(1-x)Al2O4 powders as new ceramic pigments via combustion route using 3-methylpyrozole-5-one as fuel.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (2011-07-26)
Ibrahim S Ahmed, Sayed A Shama, Hassan A Dessouki, Ayman A Ali
ABSTRACT

New Ni(x)Mg(1-x)Al(2)O(4) nanosized in different composition (0.1≤x≤0.8) powders have been synthesized successively for first time by using low temperature combustion reaction (LTCR) of corresponding metal chlorides, carbonates and nitrates as salts with 3-methylpyrozole-5-one (3MP5O) as fuel at 300°C in open air furnace. Magnesium aluminate spinel (MgAl(2)O(4)) was used as crystalline host network for the synthesis of nickel-based nano ceramic pigments. The structure of prepared samples was characterized by using different techniques such as thermal analysis (TG-DTG/DTA), X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and transmission electron microscopy (TEM). UV/Visible and Diffuse reflectance spectroscopy (DRS) using CIE-L*a*b* parameters methods have been used for color measurements. The obtained results reveal that Ni(x)Mg(1-x)Al(2)O(4) powder of samples is formed in the single crystalline and pure phase with average particle size of 6.35-33.11 nm in the temperature range 500-1200°C. The density, particle size, shape and color are determined for all prepared samples with different calcination time and temperature.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Magnesium aluminate, spinel, nanopowder, <50 nm particle size (BET)
Sigma-Aldrich
Magnesium aluminate, single crystal substrate, <100>, 99.99% trace metals basis
Sigma-Aldrich
Magnesium aluminate, single crystal substrate, <111>, 99.99% trace metals basis
Sigma-Aldrich
Magnesium aluminate, single crystal substrate, <110>, 99.99% trace metals basis

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