%0 Journal Article
%A Casalegno, Valentina
%A Perero, Sergio
%A Girman, Vladimír
%A Sedlák, Richard
%A Scarpellini, Alice
%A Dorow-Gerspach, Daniel
%A Heuer, Simon
%A Ferraris, Monica
%T W/Fe co-sputtered layers for tungsten to steel joints
%J Nuclear materials and energy
%V 35
%@ 2352-1791
%C Amsterdam [u.a.]
%I Elsevier
%M FZJ-2023-02327
%P 101421 -
%D 2023
%X This work reports about preparation of W/Fe co-sputtered layers between tungsten and steel in order to ease their coefficient of thermal expansion mismatch.Iron and tungsten have been gradually co-sputtered on W tiles with real time deposition parameters changing to obtain a graded interlayer: SEM, EDS, XPS, HR-TEM have been used to characterize the W/Fe co-sputtered layer.W tiles co-sputtered with the W/Fe layers have been hot pressed to steel tiles: morphology and mechanical strength have been investigated for joints with and without W/Fe co-sputtered layer.Lap-shear tests in compression at room temperature have been made on hot pressed W/steel joints with and without W/Fe co-sputtered layer, showing a different behaviour.High flux test on joints with and without W/Fe co-sputtered layer are reported and discussed. The mechanical test results of manufactured joints are in good accordance with high heat flux test results, showing that the behaviour of hot-pressed joints with W/Fe co-sputtered layer was slightly worse if compared to joints without co-sputtered layer at the interface.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:001009154300001
%R 10.1016/j.nme.2023.101421
%U https://juser.fz-juelich.de/record/1008401