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纳米晶材料是一种单相或多相的多晶材料,其晶粒尺寸通常在1—25nm之间.由于特殊的微观结构,如高密度的晶界(可达50%)及晶界部分无短程序的结构特征,使其成为在结构(原子结构和电子结构)和性能上均不同于通常的晶态和非晶态的一种具有潜在应用价值
Nanocrystalline materials are single-phase or multiphase polycrystalline materials with grain sizes typically between 1 and 25 nm due to the special microstructure such as high density grain boundaries (up to 50%) and grain boundaries The shortest structural features make it a potential application that is different in structure (atomic structure and electronic structure) and properties from the usual crystalline and amorphous states