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Recently terahertz spectroscopy has progressed rapidly and it is expected that its spectra are more material specific compared with those of mid-infrared regions. Since the materials used in art are basically mixtures and are composed with inorganic and organic materials, spectra obtained in mid-infrared regions are complicated. We have observed spectra of various historical and modern pigments and...
Aluminum nitride (AlN) and TiAlN precursor solutions were synthesized by room temperature galvanostatic electrolysis of Al metal and Ti–Al alloy, respectively, in isopropyl-amine at a current density of 50mAcm −2 . Monolithic AlN and composite TiAlN powders were prepared from these precursors by two-stage heat treatment at 400°C in Ar and at 1200°C in NH 3 . Nitride films were produced...
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