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基于单位体积的抓电子能量,将硬度概念由原子硬度、离子硬度拓展到了键硬度,在这三个微观层次上研究了材料硬度的本质.研究发现,材料的硬度与其组成原子或离子的硬度没有直接关系,而与其组成化学键的硬度直接相关,本质上取决于其单位体积组成化学键的抓电子能量,并由此建立了鉴别宏观材料硬度的微观模型.该工作有助于人们在原子水平上认识材料硬度的本质,对于探索新型超硬材料具有重要的理论指导意义和实际应用价值。
Based on the grasping of electron energy per unit volume, the concept of hardness is expanded from atomic hardness and ionic hardness to bond hardness, and the nature of material hardness is studied at these three microscopic levels.It is found that the hardness of materials and the hardness of their constituent atoms or ions are not Directly related to the hardness of its chemical bond, which depends essentially on the electron-grasping energy of the chemical bonds per unit volume of the chemical bond and thus establishes a microscopic model for identifying the hardness of the macroscopic material. This work helps people to understand atomic level The essence of material hardness has important theoretical and practical value for exploring new superhard materials.