Research Information System
Ceramics International, vol.51, no.19, pp.28043-28048, 2025 (SCI-Expanded, Scopus)
This research looks at the structure of titanium nitride (TiN) nanopowders after they have been exposed to gamma irradiation and then heated to high temperatures. The TiN samples were exposed to gamma irradiation using a 60Co source at different absorbed doses (50, 200, 900, and 3500 kGy). This was done within an MRX-25 gamma device. Then, the samples were heated to 1173 K in a Linn™ HT-1800 furnace under a very low vacuum (10-6 Torr).We used X-ray diffraction (XRD) analysis coupled with the Rietveld refinement method to assess the structural parameters and phase compositions.The study focuses on how gamma irradiation affects the oxidation behaviour and microstructural properties of TiN nanoparticles. After the samples were exposed to gamma irradiation and then annealed, XRD analysis showed that the amount of oxide phase decreased from 6.4 % in the samples that weren't exposed to gamma irradiation to 3.88 % in the samples that were exposed to the highest dose of gamma irradiation. Looking at the microstructure showed that annealing led to a decrease in strain and dislocation density, as well as a 2.5-fold increase in average crystallite size in samples that were exposed to a high dose of irradiation.