Temperature dependence of retarded recrystallisation in helium plasma-exposed tungsten
Recrystallisation has been identified as a critical issue for the ITER divertor but currently the synergistic effects of heat and particle bombardment on tungsten recrystallisation are still unclear. In this study, tungsten was exposed to helium plasma under a range of sample temperatures (573 K–1073 K) and ion fluences (1024–1025 m−2 ) followed by annealing at a range of temperatures (1373 K–1673 K). It is quantitatively found that larger helium nanobubbles form at higher sample...[Show more]
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