抄録
Titanium phosphates Ti(HPO4)2·nH2O and their derived substances were investigated as humidity-sensitive materials. Among the sensor elements studied, TiP-1-NaOH-800 element which was prepared by immersing Ti(HPO4)2·H2O in aqueous NaOH solution, followed by calcining at 800°C, exhibited the best performance from the viewpoint of humidity sensitivity and measurability. Suitable starting materials Ti(HPO4)2·nH2O and optimum sintering conditions were also investigated.