Yuan Jianmin Zhao Yijun Zhang Zhijie (At.Mol.Phys.and Physical Mechanics Research Center,National Univ of Defense Tech.,Changsha,Hunan,P.R.China)

摘要

INTRODUCTIONIn the deyelopment of material science,it 15 desirable that theand elastic eonstants whieh are the imPoaceurately calculated by means ofrtant meehanical ProPertieseohesive energiesof erystals ean bePhysieal meehanies method .