| Author(s) | S. M. Alshehri |
| Affiliation | Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh-11451, Saudi Arabia E-mail: alshehri@ksu.edu.sa |
| Title | Isothermal Decomposition of Un-irradiated and Pre- -irradiated Neodymium Acetate |
| Source | Journal of King Saud University. Science. Volume 16, No 2. (2004/1424) |
| Abstract | Isothermal decomposition of un-irradiated and pre--irradiated neodymium acetate has been investigated at different temperatures between 583-603 K. Irradiation was observed to enhance the rate of decomposition without modifying the mechanism of the thermal decomposition. Thermal decomposition of neodymium acetate has been shown to proceed by a nucleation and growth mechanism (Erofe’ev model) both for un-irradiated and pre--irradiated samples. The enhancement of the decomposition was found to increase with an increase in the -ray dose applied to the sample and may be attributed to an increase in point defects and formation of additional nucleation centers generated in the host lattice. The change in crystallinity of the investigated neodymium acetate by -irradiation was studied using X-ray diffraction technique. Thermodynamic values of the main decomposition process were calculated and evaluated. |
