5Conrad J R. Plasma source ion implantation:A new, cost - effective, non-line-of-sight technique for ion implantation of materials[ J]. Surface and Coatings Technology, 1988,36(3) :927 ~ 937.
6Hohmuth K, Richter E. Fatigue and wear of metalloid-ion-implanted metals[J]. Materials Science and Engineering, 1985,69(4): 191 ~ 201.
7Conrad J R, Radtke J L. Plasma source ion-implantaion technique for surface modification of materials[J]. J Appl Phys, 1987, 62(11) :4591 ~ 4596.