% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Litnovsky:891395, author = {Litnovsky, Andrey and Schmitz, Janina and Klein, Felix and De Lannoye, Karen and Weckauf, Sophie and Kreter, Arkadi and Rasinski, Marcin and Coenen, Jan W. and Linsmeier, Christian and Gonzalez-Julian, Jesus and Bram, Martin and Povstugar, Ivan and Morgan, Thomas and Nguyen-Manh, Duc and Gilbert, Mark and Sobieraj, Damian and Wróbel, Jan S.}, title = {{S}mart {T}ungsten-based {A}lloys for a {F}irst {W}all of {DEMO}}, journal = {Fusion engineering and design}, volume = {159}, issn = {0920-3796}, address = {New York, NY [u.a.]}, publisher = {Elsevier}, reportid = {FZJ-2021-01484}, pages = {111742 -}, year = {2020}, abstract = {During an accident with loss-of-coolant and air ingress in DEMO, the temperature of tungsten first wall cladding may exceed 1000 °C and remain for months leading to tungsten oxidation. The radioactive tungsten oxide can be mobilized to the environment at rates of 10–150 kg per hour. Smart tungsten-based alloys are under development to address this issue. Alloys are aimed to function as pure tungsten during regular plasma operation of DEMO. During an accident, alloying elements will create a protective layer, suppressing release of W oxide.Bulk smart alloys were developed by using mechanical alloying and field-assisted sintering technology. The mechanical alloying process was optimized leading to an increased powder production by at least 40 $\%.$ Smart alloys and tungsten were tested under a variety of DEMO-relevant plasma conditions. Both materials demonstrated similar sputtering resistance to deuterium plasma. Under accident conditions, alloys feature a 40-fold reduction of W release compared to that of pure tungsten.}, cin = {IEK-4 / IEK-1}, ddc = {530}, cid = {I:(DE-Juel1)IEK-4-20101013 / I:(DE-Juel1)IEK-1-20101013}, pnm = {134 - Plasma-Wand-Wechselwirkung (POF4-134)}, pid = {G:(DE-HGF)POF4-134}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000580835200012}, doi = {10.1016/j.fusengdes.2020.111742}, url = {https://juser.fz-juelich.de/record/891395}, }