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The microstructure and mechanical properties of a newly developed high-strength Mg-8Al-4Sn-2Zn alloy (ATZ842) were investigated and compared with those of a commercial high-strength Mg-8Al-0.5Zn alloy (AZ80). The presence of undissolved second phases and the small grain size of homogenized ATZ842 were found to promote dynamic recrystallization (DRX) during extrusion through particle-stimulated nucleation...
Perovskite barium–strontium titanate, (Ba,Sr)TiO 3 was prepared and effects of Sb 2 O 3 additives on its PTCR properties were investigated. The (Ba,Sr)TiO 3 with 0.05∼0.25 mol% Sb 2 O 3 showed semiconducting PTCR behavior and anomalous grain growth was also observed when sintered at 1360 °C. It was considered that charge compensation by doping Sb ...
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