Abstract
Solid breeder materials used for supplying the tritium for fueling fusion power reactors will be required to withstand a variety of severe environmental conditions such as irradiation damage, thermal stresses and chemical reactions while continuing to produce tritium and not interfering with other essential components in the complex blanket region. In the FUBR-1B experiment, several solid breeder candidates are being subjected to the hostile conditions (i.e., high burnup and large temperature gradients) foreseen in a fusion reactor's blanket. Materials with high lithium atom densities, such as Li 2 O, Li 8 ZrO 6 and Li 4 SiO 4 , and with irradiation stability such as LiAlO 2 and Li 2 ZrO 3 , are being irradiated to high burnup levels and under large temperature gradients.
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