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Higher thermal coefficient of resistance (TCR) for any sensing element is prerequisite to ensure best sensing performance, because the rest of the sensor parameters just follow the suit. In this paper, we report a simple, low cost technique, called ‘gel-cast’ for the preparation of tape/film from multi-walled carbon nanotubes (MWCNTs)-Alumina (Al2O3) composite and its potential use as temperature...
The modified sol-gel method was used to obtain of Y4Al2O9 nanopowders co-doped with Tb, Yb cations. SEM microstructure examination proved that nanoscale grains were obtained in all samples. Complex lines of Y3d, O1s and Al2p were found in the photoelectron spectra. The XPS energy gap in the valence band was estimated as about 4.6eV. Results of SQUID magnetometry measurements confirmed nominal concentration...
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