title: 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.
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.
authors.affiliation: Chemistry Department, Faculty of Science, Benha University, Benha City, Egypt. isahmed2010@gmail.com
authors.forename: Ibrahim S
authors.initials: IS
authors.lastname: Ahmed
authors.forename: Sayed A
authors.initials: SA
authors.lastname: Shama
authors.forename: Hassan A
authors.initials: HA
authors.lastname: Dessouki
authors.forename: Ayman A
authors.initials: AA
authors.lastname: Ali
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry; D000537:Aluminum Oxide / Q000737:chemistry*; D002516:Ceramics / Q000737:chemistry; D004396:Coloring Agents / Q000138:chemical synthesis* / Q000737:chemistry*; D003460:Crystallization; D006358:Hot Temperature; D008274:Magnesium / Q000737:chemistry*; D017616:Magnesium Compounds / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry; D009532:Nickel / Q000737:chemistry*; D010316:Particle Size; D011208:Powders; D011720:Pyrazoles / Q000737:chemistry / Q000494:pharmacology*; D013057:Spectrum Analysis; D013816:Thermodynamics
chemical_list: D017607:Aluminum Compounds; D004396:Coloring Agents; D017616:Magnesium Compounds; D011208:Powders; D011720:Pyrazoles; C110424:aluminum magnesium oxide; D009532:Nickel; D008274:Magnesium; D000537:Aluminum Oxide