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Dr. Ayman Awad Ali Abdel Razik :: Publications: |
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| Title: | Synthesis and spectral characterization of CoxMg1-xAl2O4 as new coloring agent of ceramic pigments, Spectrochimica Acta PartA,74, 665–672. |
| Authors: | I.S. Ahmed,S. A. Shama, M. M. Moustafa, H.A. Dessouki and A.A. Ali |
| Year: | 2009 |
| Keywords: | Not Available |
| Journal: | Not Available |
| Volume: | Not Available |
| Issue: | Not Available |
| Pages: | Not Available |
| Publisher: | Not Available |
| Local/International: | International |
| Paper Link: | |
| Full paper | Ayman Abdlrazek_Synthesis and spectral characterization of CoxMg1−xAl2O4 as new nano-coloring agent of ceramic pigment .pdf |
| Supplementary materials | Not Available |
| Abstract: |
New nano-blue ceramic pigments of CoxMg1−xAl2O4 (0≤x≤0.1) have been prepared by coprecipitate– combustion as a hybrid method using urea as a fuel at 500 ◦C in open furnace in air atmosphere. The structure of pigment is assigned based on TGA/DTA/DrTGA analyses, X-ray diffraction (XRD) and transmission electron microscopy (TEM). Also, electronic spectra, infrared (IR) and diffuse reflectance spectroscopy (DRS) using CIE L*a*b* parameter measurement techniques were used. The results revealed that the nano-particle size of pigments were obtained in the range 30–38nm as well as the varying colors and particle size as a result of different calcinations temperatures within the range of 500–1200 ◦C for 2 h. |
