Electrical properties of La2Mo1.98Nb0.02O8.99 oxide ionic conductors prepared by tape casting

• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2018,（12）
• 页码范围: 2368-2370
• 页数: 3页
• 语种: 英文

摘要

La2Mo2-xNbxO9-δ thick films have been successfully prepared by using a tape casting technique.Partial stabilization of the high temperature cubic phase is revealed in Nb doped La2Mo2O9 (LMO) films.The sintering temperature is decreased to 925 ℃ as compared with that of 1 150 ℃ in bulk ceramics.The grain exhibits an oxide ionic conductivity of 0.014 S cm-1 at 603 ℃ for La2Mo1.98Nb0.02 O8.99,which is 39％ higher than pure LMO.Additionally,the Nb doped LMO films present low grain boundary resistance showing the potential application as solid electrolytes.