研究了不同种类和颗粒级配细骨料和3种聚羧酸减水剂对掺有氟石膏的复合型石膏基地面自流平砂浆性能的影响。结果表明:当细骨料掺量......

A series of alumina-zirconia composites with various grain sizes were prepared from the nano-sized powders with differen......

建立了铅黄铜超塑性拉伸温度、初始应变速率与延伸率、流变应力之间的BP神经网络预测模型，分析了变形条件与超塑性能之间的关系，根据......

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The microstructure of 40Cr steel sample and its surface is ultra-fined through saltbath cyclic quenching and high freque......