Determination of hydrogen solubility in oxide ceramics by using SIMS analyses

Sakai N; Yamaji K; Horita T; Yokokawa H; Hirata Y; Sameshima S; Nigara Y; Mizusaki J

Solid State Ionics, Vol.125, No.1-4, 325-331, 1999

DOI10.1016/S0167-2738(99)00192-7 Export Citation

Determination of hydrogen solubility in oxide ceramics by using SIMS analyses

Sakai N, Yamaji K, Horita T, Yokokawa H, Hirata Y, Sameshima S, Nigara Y, Mizusaki J

Hydrogen solubility in oxide ceramics was evaluated by annealing in D2O-containing atmosphere and subsequent secondary ion mass spectrometry (SIMS). A good proportional relation was obtained between the relative intensity of deuterium ion in SIMS and literature data of hydrogen solubility for YSZ and Sr(Yb)CeO3-delta. The hydrogen solubility in CeO2 and rare-earth doped ceria (Ce0.8M0.2O1.9, M = Y, La, Nd, Sm, Gd, Yb) was evaluated. The hydrogen solubility in ceria dramatically increased by rare earth substitution, and it depended on the lattice parameter of Ce0.8M0.2O1.9.