화학공학소재연구정보센터
Plasma Chemistry and Plasma Processing, Vol.23, No.2, 223-232, 2003
Characterization of La0.8Sr0.2MnO3 produced by a reactive DC thermal plasma spray system
An atmospheric pressure, reactive DC plasma spray system was used to evaluate a process for depositing porous, complex oxide thin films. A mixture of La3O3, SrCO3, and MnCo3 was used to produce a porous cathode layer for potential application in planar solid oxide fuel cells. The coated lanthanum strontium manganite (LSMO) layer made from the mixture was compared to ones generated using a pre-reacted LMSO powder made by solid-state reaction. The results showed that the crystallization of the reactive-spray formed coating layer on the zirconia substrate was higher than that of the coating layer on the mild steel from the pre-reacted LMSO powder. It is both a simpler process and gave better crystallization. The controlled porous coating layers with open pore size of less than 1 mum were successfully produced in a reactive DC plasma spray system from the mixture of raw materials.