Blistering and flaking of amorphous alloys bombarded with He ions

Blistering and flaking of amorphous alloys bombarded with He ions 1 first-author 1 1 1 Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000 Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000 The blistering and flaking behavior of many kinds of amorphous alloys under helium ion bombardment at room temperature was investigated. Helium ions with energies of 40 keV and 60keV were implanted within the fluence range (1.0~4.0)×10 18 ions/cm 2 . The surface topography of samples after irradiation was observed by using a scanning electron microscope. The diameter of blister and the thickness of exfoliated blister lids were measured. The results showed that many kinds of surface topography characteristics appeared for different fluences, energies and amorphous alloys, such as flaking, blistering, exfoliation, blister rupture, secondgeneration blistering and porous structure. The dependence of surface damage modes and the critical fluence for the onset of blistering and flaking on the sort of materials and ion energy was discussed. Blistering Flaking Exfoliation Helium ion implantation Amorphous alloy References Roth J. In: Applications of Ion Beams to Materials , eds. Carter G , Colligon J S , Grant W A . London and Bristol : Institute of Physics , 1975 , 280 - 292 Applications of Ion Beams to Materials Nandedkar R V , Tyagi A K. Rad Eff Letters , 1981 , 58 : 91 - 96 Rad Eff Letters Cahn R W. Contemp Phys , 1980 , 21 : 43 - 75 Contemp Phys Chen H S. Rep Prog Phys , 1980 , 43 : 353 - 432 Rep Prog Phys Holt J B , Bauer W , Thomas G J. Radiat Effects , 1971 , 7 : 269 - 275 Radiat Effects Daniels R D. J Appl Phys , 1971 , 42 : 417 - 419 J Appl Phys Kaminsky M , Das S K. Radiat Effects , 1973 , 18 : 245 - 252 Radiat Effects Behrisch R , BØttiger J , Eckstein W et al . Appl Phys Lett , 1975 , 27 : 199 - 201 Appl Phys Lett Roth J , Bchrisch R , Scherzer B M U. J Nucl Mater , 1974 , 53 : 257 - 266 J Nucl Mater O571.33, O756, TL62 + 7 Supported by the National Natural Science Foundation (19775058 and 10075064), Natural Science Foundation of Gansu Province (ZR96-025) and the Foundation of the Chinese Academy of Sciences (KJ952-S1-423) 2000-03-27 2001-05-01 2021-02-05 2001 Nuclear Science and Techniques 2 12