New data were obtained concerning the effect of small additions of zirconia nanoparticles on the strength properties of powder matrices produced by cold pressing of powders with subsequent sintering in a forevacuum. The matrices were either a pure aluminum powder or an aluminum–1.5 vol % copper powder mixture. It was shown that the introduction of nanoadditives to even an insignificant concentration causes a tangible increase in the mechanical properties of the materials, such as tensile, flexural, compressive, and offset yield strengths.

中文翻译：

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铝材料强度特性对 ZrO2 纳米粒子浓度的依赖性

获得了关于少量添加氧化锆纳米粒子对粉末基体强度特性的影响的新数据，该粉末基体是通过冷压粉末随后在前真空中烧结而产生的。基质是纯铝粉或铝-1.5 vol% 铜粉混合物。结果表明，即使纳米添加剂的浓度微不足道，也能显着提高材料的机械性能，例如拉伸、弯曲、压缩和偏移屈服强度。