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Decomposition of melamine was studied by solid state reaction of melamine and aluminum powders during high energy ball-milling. The milling procedure performed for both pure melamine and melamine/Al mixed powders as the starting materials for various times up to 48h under ambient atmosphere. The products were characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The results revealed that Al causes melamine deammoniation at the first stages of milling and further milling process leads to the s-triazine ring degradation while nano-crystallite hexagonal aluminum nitride (h-AlN) was the main solid product. Comparison to milling process, the possibility of the reaction of melamine with Al was also investigated by thermal treatment method using differential scanning calorimeter (DSC) and thermo gravimetric analyzer (TGA). Melamine decomposition occurred by thermal treatment in the range of 270–370°C, but no reaction between melamine and aluminum was observed.
Graphical Abstract
Graphical Abstract Highlights
Mechanochemical reaction of melamine with Al resulted in the formation of nanocrystalline AlN after 7h milling time
| Authors: | S.A. Rounaghi, A.R. Kiani Rashid, H. Eshghi, J. Vahdati Khaki | |
| Journal: | Journal of Solid State Chemistry | |
| Year: | 2012 | |
| DOI: | 10.1016/j.jssc.2012.01.005 | |
| Publication date: | 07-05-2012 |
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