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用压淬的方法，在６ＧＰａ静高压下，以２００Ｋ／ｓ的冷却速率冷却熔融状态的Ｃｕ＿（７０）Ｓｉ＿（３０）合金，制备出块状Ｃｕ－Ｓｉ纳米合金．Ｘ射线衍射和透射电子显微镜分析表明：该纳米合金由γ－Ｃｕ＿５Ｓｉ和一未知相组成，未知相为简单立方晶体，晶格常数α＝０．８５３５ｎｍ，其热力学状态为亚稳态。并对静高压下块状纳米合金的形成机理进行了探讨。
The Cu-Si nanostructures were prepared by pressure-quenching the molten Cu 70 Si 30 alloy under a static pressure of 6 GPa at a cooling rate of 200 K / s. The results of X-ray diffraction and transmission electron microscopy show that the nanocrystalline alloy consists of γ-Cu_5Si and an unknown phase. The unknown phase is a simple cubic crystal with a lattice constant α = 0.8535 nm. The thermodynamic state is metastable state. The formation mechanism of massive nanostructures under static pressure was also discussed.