CO₂ absorption characteristics of a Li₂TiO₃ blanket material under atmospheric exposure

Non-Rutherford backscattering spectroscopy (NRBS) for the composition analysis and X-ray diffraction (XRD) for the crystallographic structure analysis have been applied to the blanket candidate material, Li₂TiO₃, which is known to absorb CO₂ though chemically stable. It is found that the amount of CO₂ absorbed by atmospheric exposure of the low- and medium-density samples is greater than or comparable to that by dry CO₂ gas exposure. By varying the density of the Li₂TiO₃ and composition of the ambient gas, conditions to minimize the amount of CO₂ absorbed are discussed