Zobrazeno 1 - 10
of 325
pro vyhledávání: '"J.L. Whitton"'
The members of the organising Committee and their colleagues have, for many years been investigating the evol ution of the fas'cinating surface features which develop during sputtering erosion of solids. Such experimental, theoretical and computati
Publikováno v:
Surface and Coatings Technology. 83:189-193
Sputtering is a significant problem in the high-dose implantation of heavy ions, limiting the achievable peak concentration. To increase the retained dose, a target can be coated with a thin sacrificial layer of low sputtering yield, which slowly ero
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 106:504-510
Previous work by the authors has shown that the sputtering limitation often associated with high-dose, heavy-ion implantation can be overcome by implanting through a thin “sacrificial” surface layer of low sputter yield material. Thus far C and A
Autor:
M.A. Volfson, T.D. Radjabov, A.I. Kamardin, A.Sh. Iskanderov, T. Laursen, R.A. Machevskaya, Z.A. Iskanderova, J.L. Whitton, I.V. Polityko
Publikováno v:
Surface and Coatings Technology. 72:88-92
Surface modification of metals prior to painting provides a means of improving the protective ability of paint coatings. The present study considers a surface modification process consisting of sputter cleaning of steel surfaces followed by Ti film d
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :501-504
High dose implantation of heavy ions is highly problematical, since these ions may have sputtering yields (Sy) in excess of 30, with high doses leading to significant target erosion and a resultant loss of the implanted species. Although the Sy of he
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 64:475-479
Rutherford backscattering has been applied to the determination of the temperature dependence of Hf diffusion in the commercial alloys Zr−2.5 wt.% Nb and Zircaloy-2. The diffusion anneals were made, under vacuum, in the temperature interval 830–1
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :768-771
The effect of ion-implanted yttrium on the oxidation of austenitic stainless steel is studied by combining ion backscattering (RBS) and SIMS characterizations of implanted and unimplanted specimens. Elemental depth distributions are measured after ox
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :1404-1408
This work is part of a general study examining the use of ion implantation and rapid thermal annealing (RTA) to produce high- T c films on copper substrates. The behavior of implanted oxygen in copper and also copper oxidation during rapid thermal an
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 48:571-575
previous studies of sputter-induced topographical development have shown that it is possible to form pyramids on single-crystal fee metals oriented in the (1131) crystallographic direction. These pyramids form when the surface is bombarded with relat