Chemical solution deposition of La2Zr2O7 and Y2Ti2O7 buffer layers on NiW substrates

La2Zr2O7 and Y2Ti2O7 buffer layers with similar lattice constant and cubic structure were successfully deposited on NiW(2 0 0) substrates using propionic acid as unique chelate through chemical solution deposition method. The results showed that using 900 °C-annealing temperature one could obtain highly (4 0 0)-oriented LZO buffer layers with relatively sharp out-of-plane and in-plane orientation and flat microstructure; However, the YTO buffer layers with similar lattice constant with LZO and cubic structure were (2 2 2)-oriented although the YTO lattice constant and structure were similar with that of LZO.