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混合势函数#-------------基本设置--------------------------------- units metal dimension 3 boundary p p p neighbor 0.3 bin neigh_modify delay 0 timestep 0.001 #------------------结构建模------------------------------ region box block 0 80 0 80 0 80 units box create_box 2 box #-------------------Al球-------------------------------- lattice fcc 4.05 region al1 sphere 20 20 20 16 units box create_atoms 1 region al1 region al2 sphere 53 20 20 16 units box create_atoms 1 region al2 region al3 sphere 20 53 20 16 units box create_atoms 1 region al3 region al4 sphere 53 53 20 16 units box create_atoms 1 region al4 region al5 sphere 20 20 57 16 units box create_atoms 1 region al5 region al6 sphere 53 20 57 16 units box create_atoms 1 region al6 region al7 sphere 20 53 57 16 units box create_atoms 1 region al7 region al8 sphere 53 53 57 16 units box create_atoms 1 region al8 #---------------------石墨烯----------------------------- lattice custom 2.4768 a1 1.0 0.0 0.0 a2 0.0 1.732 0.0 a3 0.0 0.0 1.3727 & basis 0.0 0.33333 0.0 & basis 0.0 0.66667 0.0 & basis 0.5 0.16667 0.0 & basis 0.5 0.83333 0.0 region graphene block 5 68 5 68 37 40 units box create_atoms 2 region graphene #--------------------原子摩尔质量-------------------------- mass 1 27 mass 2 12 #--------------------混合势函数设置------------------------------ pair_style hybrid lj/cut 10 eam/fs airebo 3.0 pair_coeff * * eam/fs Al_mm.eam.fs Al NULL pair_coeff * * airebo CH.airebo NULL C pair_coeff 1 2 lj/cut 0.023 2.852 #-------------------热力学输出---------------------------- thermo 100 #--------------------能力最小化----------------------- min_style cg minimize 1e-15 1e-15 5000 5000 #-------------------npt系综下驰豫-------------------- velocity all create 300 873421 fix 1 all npt temp 300 300 0.01 iso 0 0 0.1 run 10000 thermo_modify lost ignore unfix 1 #------------------nvt下烧结-------------------------- fix 1 all nvt temp 300 1000 0.01 dump 1 all atom 2000 algp_heat.lammpstrj run 20000 |