New oxidation-resistant tungsten alloys for use in the nuclear fusion reactors

Fusion power Sublimation
DOI: 10.1088/1402-4896/aa81f5 Publication Date: 2017-09-13T15:14:09Z
ABSTRACT
Smart tungsten-based alloys are under development as plasma-facing components for a future fusion power plant. planned to adjust their properties depending on environmental conditions: acting sputter-resistant material during plasma operation and suppressing the sublimation of radioactive tungsten oxide in case an accident New smart containing yttrium presently focus research. Thin film featuring remarkable 105-fold suppression mass increase due oxidation compared that pure at 1000 °C. Newly developed bulk feature even better resistance thin films. First test DEMO-relevant conditions revealed same removal sputtering by ions. Exposed alloy samples demonstrate superior performance tungsten–chromium–titanium systems earlier.
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