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The temperature dependence of internal friction, stiffness and strength of Zr–Al(Si)–C ceramics was studied. For glass-free Zr–Al(Si)–C ceramics, the internal friction curve followed an exponential-like background. For liquid-phase-sintered Zr 3 Al 3 C 5 , an internal peak present at 1590K revealed the grain-boundary sliding due to wetting of glass phase at grain boundaries...
The low field magnetoresistance and the current–voltage characteristics in the granular (La 2/3 Sr 1/3 MnO 3 ) x /(ZnO) 1−x composites are reported. These composites have the percolation threshold about 0.3, at which the magnetoresistance has a maximum (15.2%, at 80 K). The composites investigated by the current–voltage characteristics exhibit the completely...
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