非均匀形核 △G=-VAG+△Gs △G S1+σnS La1 B 2 LB2 △G=(-m△G+4mnk2-3cos0+cos30 4 20 20,T L 2-3cos-0+cos 0 ∧G L△T 4C1 47rkO La 4非均匀形核 G = −VGV + GS ' GS =  L S1 +  S2 − L S2 ) 4 2 3cos cos 4 )( 3 4 ( 3 ' 3 2       − +  = −  V + L G r G r L T T G r m L m V L k  =  =     ' 2 2 ) 4 2 3cos cos 4 ( 3 1 2 3 ' 2      − +  k = k L G r