The research studies glass ceramic tiles manufactured from cupola furnace slags, which show robust mechanical properties and efficient X-ray shielding. study involves fabricating 1000°C sintered tiles, both with without binders, using various industrial slags. provides valuable insights into potential applications. primary components in slag powder are silica (SiO 2 ) calcium oxide (CaO), SiO –CaO-based minerals such as wollastonite anorthite emerging after sintering, enhancing the...

We have presented here results of a low temperature transport study polypyrrole nanowires having electron densities, which shows characteristics charge density waves observed in structurally ordered materials. The current-voltage all these show power-law dependence on voltage and ``gap'' that decreases rapidly as the is increased, confirming existence long-range electron-electron interaction nanowires. A switching transition to highly conducting state has been above threshold voltage, can be...

A novel switching property of conducting polymer nanowires is observed. The change in resistance was found to be more than three orders magnitude (see figure) and the threshold voltage (current) can tuned by playing with diameter and/or temperature. mechanism observed this structurally disordered material similar that charge-density-wave systems crystalline substances.

Magnesium aluminate spinel nanoparticles with different concentration of alumina(x = 0.1, 0.2, 0.3, 0.4 and 0.54) are synthesized by solid state reaction method. The products characterized powder X-ray diffraction UV–Vis spectroscopy. prepared exhibit a cubic structure average crystallite size 25.4, 30.1, 31.2, 29.6 19.5 nm, respectively. band gap values magnesium nanopartciles found to increases increase in alumina concentration(x 0.1 0.54). Photocatalytic studies the done taking methylene...

The cyclic high temperature oxidation behaviour of sputtered Cr/Al multilayer coatings fabricated by direct current magnetron sputtering on the superalloy substrate has been studied in present work. microstructural features as deposited were characterised field emission scanning electron microscopy, atomic force microscopy and X-ray diffraction. weight change measurements made to calculate kinetics coatings, air at 900°C. It was observed that corrosion rate coated is lower than uncoated due...

Zinc aluminate spinel nanoparticles with different concentrations of alumina (x = 0·000, 0·005, 0·010, 0·015 and 0·020) are synthesised by solid state reaction method. The products characterised powder X-ray diffraction, Raman spectroscopy, Fourier transform infrared, UV–visible spectroscopy. prepared exhibit a cubic structure average crystallite size 68·3, 48·1, 58·3, 45·2 51·4 nm respectively. Optical measurements indicated slight shift in the absorption band edge increasing doping...

The electronic transport properties of ultra-low doped conducting polymer nanowires exhibit characteristics a pinned one-dimensional Wigner crystal (1D WC) due to the long range electron–electron interaction at low temperature (<30 K). These wires also show three-dimensional variable hopping (3D VRH) higher temperature. Here we report resistivity study these as function bias around and above 30 K, that crossover takes place from 3D VRH power law behavior voltage or current is increased...

Nanostructured Cr/Co–Al coatings on Superni-718 superalloy substrate are deposited by direct current/radio frequency magnetron sputtering. The microstructure and hot corrosion behaviour of sputtered have been investigated in molten salt 40 wt-%Na 2 SO 4 +60 wt-%V O 5 at 900°C. results showed that a dense scale formed the coated samples during thermal cycling. spinel phases CoCr , CoAl NaAlO present corroded coating, resulting an effective inhibition S diffusion. better performance due to its...

Single layer (ZnO, ZnS and Al doped ZnO film), double (ZnO/Al film) triple films ZnO/ZnO ZnO/Al ZnO/ZnS were deposited on sodalime glass substrate by electroless process. Wet thin dried in air subsequently annealed a muffle furnace atmosphere at 500°C for 2 h. Significant characteristics of the films, such as crystallinity, surface roughness, well optical properties large spectral range between 300 800 nm analysed. Average grain size was found 40–90 nm. The obtained sample film exhibits...

Negative capacitance has been observed in conducting polymer nanowires. These nanowires exhibit features of one-dimensional Wigner crystals, such as switching transition that reduces resistance by several orders magnitude, negative differential resistance, and enhancement noise the switched state. is theoretically predicted characteristic feature a crystal. The magnitude increases with increasing bias voltage below transition. Above decreases current bias. goes from to positive value crystal...