Abstract
Lithium titanate (Li2TiO3) and hyper-stoichiometric lithium titanate (Li/Ti = 2.17 and 2.25) foams were synthesised and characterised for tritium breeder application in a fusion reactor. Ceramic foams were produced through sponge replication methodology that exhibits high porosity with interconnected pores. As compared to Li2TiO3, hyper-stoichiometric lithium titanate is reported to possess better performance due to excess lithium in the structure. Hyper-stoichiometric lithium titanate foam exhibited a maximum flexural strength of 0.75 MPa. The unique porous structure with highly dense struts of lithium titanate foams resulted in adequate crushing load at room temperature. The crush load of lithium titanate foam was also measured at an elevated temperature (600 °C) to examine the effect of operating temperature on the structural stability of foam based breeder module.
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