Akademik Veri Yönetim Sistemi
Journal of Inorganic and Organometallic Polymers and Materials, 2025 (SCI-Expanded, Scopus)
In this study, chromium oxide doped zirconia-gadolinia (ZrO₂-Gd₂O₃) nanoceramics were synthesized. The objectives were to produce and characterize these nanoceramics and to investigate the effect of chromium oxide concentration on their color properties. The polymeric precursor technique was selected for synthesis, with polyvinyl alcohol (PVA) used as the polymeric precursor. Various analytical techniques—including thermogravimetric-differential thermal analysis (TG-DTA), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), color spectrophotometry, and Brunauer–Emmett–Teller (BET) surface area analysis—were employed to evaluate the structural, thermal, and optical properties of the samples. FT-IR analysis revealed characteristic vibration bands corresponding to Cr–O, Zr–O, and Gd–O bonds in all samples. XRD results indicated the presence of the fcc-Zr₂Gd₂O₇ and o-GdCrO₃ phases. Notably, the degraded perovskite structure of GdCrO₃ was also detected. Elemental analysis via energy-dispersive X-ray spectroscopy (EDX) confirmed the presence of all target elements in the samples. According to SEM and BET analyses, the nanoceramics exhibited both macroporous and mesoporous structures, suggesting particle agglomeration within the matrix. Color spectrophotometry results showed a shift in color from olive green to vivid green with increasing Cr₂O₃ content and decreasing ZrO₂ content, highlighting the influence of chromium concentration on the ceramics.