The formation of titania (TiO2) nanowires and nanorods by various methods has been reported in the past. The current work describes for the first time the formation of TiO2 nanowires and nanorods by using the electrochemical anodization method in 0.5 wt% hydrogen fluoride (HF) based aqueous electrolyte on Ti-6Al-4V alloy. Likewise, the TiO2 nanotubes were grown on a titanium plate. The anodization voltage was varied while temperature and time were kept constant. The morphological and crystallographic characterization of the samples was performed.
Polymers reinforced with metal oxide nanoparticles exhibit interesting possibilities from application point of view due to homogeneous distribution of nanoparticles, and superior thermal and mechanical properties. In the present work, SiO2, ZrO2 and ZnO nanoparticles were prepared by the microwave hydrothermal method, and nanocomposites based on them were processed in polyvinyl alcohol (PVA) matrix. The thermal decomposition behaviour of pure PVA and composites was studied using the thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). In the case, of composites, at 50% weight loss, the temperature was shifted by nearly 80°C, in comparison to the pure PVA. The SiO2 doped nanocomposites showed, a three stage temperature decomposition in the DSC spectra.
Polymers reinforced with metal oxide nanoparticles exhibit interesting possibilities from application point of view due to homogeneous distribution of nanoparticles, and superior thermal and mechanical properties. In the present work, SiO2, ZrO2 and ZnO nanoparticles were prepared by the microwave hydrothermal method, and nanocomposites based on them were processed in polyvinyl alcohol (PVA) matrix. The thermal decomposition behaviour of pure PVA and composites was studied using the thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). In the case, of composites, at 50% weight loss, the temperature was shifted by nearly 80°C, in comparison to the pure PVA. The SiO2 doped nanocomposites showed, a three stage temperature decomposition in the DSC spectra.
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