Using the tight-binding theory, the influences of the thermal expansion on the energy band structure of the solid with a body-centered cubic lattice was discussed, the 1S and 2S energy bands of body-centered cubic lattice were calculated. 以体心立方结构为例,利用紧束缚理论,讨论了热膨胀对固体能带结构的影响,具体计算了体心立方晶格的1S能带和2S能带。
Under the same relative density, body-centered cubic hollow sphere foams were 11.2% and 2.2% larger than simple cubic lattice in stress and modulus. 相对密度相同时,体心立方结构多孔材料的抗压强度与弹性模量分别比简单立方结构提高了11.2%和2.2%。