You, J.-H., Visca, E., Böswirth, B., Dose, G., Greuner, H., Hunger, K., et al. (2021). The quest for a durable high-heat-flux component: requirements and issues. Talk presented at 18th International Conference on Plasma-Facing Materials and Components for Fusion Applications (PFMC-18). Virtual. 2021-05-17 - 2021-05-21.