Accession Number : AD0655035

Title :   CATHODE SPUTTERING OF TUNGSTEN,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Shustrov,V. A. ; Ayukhanov,A. Kh.

Report Date : 23 FEB 1967

Pagination or Media Count : 11

Abstract : The radioactive isotope method was used to investigate cathode sputtering of a polycrystalline tungsten target, the temperature of which was approximately 1800K. It is assumed that sputtering of a clean surface takes place at such a temperature. In order to prevent evaporation of the target, an instrument was constructed, which made it possible to measure simultaneously the amount m sub 1 of the material evaporated from one side of the target, and the amount m sub 2 of the material evaporated and sputtered during the same time from the opposite side. The amount of sputtered material was m = m sub 2 - m sub 1. The energy dependences of the coefficient W of sputtering of tungsten by ions Cs(+), Rb(+), K(+), and Li(+) is obtained. In the energy region 300-2500 eV, these dependences are represented by straight lines. A correlation is established between the value of the coefficient of cathode sputtering and the energy received by the target from the incoming ion in two successive collisions with the lattice atoms.

Descriptors :   (*TUNGSTEN, *SPUTTERING), USSR, CATHODES

Subject Categories : Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE