Open AccessПолучение пористого вольфрама из пленочных покрытий системы вольфрам-кадмий
Author(s) -
Ю. Ж. Тулеушев,
В.Н. Володин,
Е.А. Жаканбаев,
Б.М. Сукуров,
А.Л. Козловский
Publication year - 2018
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2018.11.46198.16780
Subject(s) - tungsten , cadmium , materials science , amorphous solid , coating , porosity , chemical engineering , sputtering , metallurgy , inorganic chemistry , nuclear chemistry , thin film , chemistry , composite material , nanotechnology , crystallography , engineering
olid solutions (alloys) with a Cd concentration of 50.3–76.3 at % were synthesized for the first time in the form of coatings by ion–plasma sputtering and codeposition of ultrafine W and Cd particles. When coatings were formed by tungsten and cadmium nanolayers, the components dissolved mutually to produce solid solutions of one metal in the other. A solid solution of cadmium in tungsten was synthesized at Cd concentrations up to 60.9 at %. At a cadmium concentration of 68.6 at % in the coating, the crystalline structure of cadmium with an admixture of amorphous tungsten was produced. At 800°C, tungsten evaporated from tungsten–cadmium coatings to form porous tungsten. The results of examination of materials fabricated on the basis of porous tungsten are planned to be used in practice.