Effect of Doped Manganese Oxide on the Properties of Ce0.8Gd0.2O2-δ Solid Electrolyte

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The effects of Ce0.8Gd0.2O2-δ (CGO) doped manganese oxide as sintering additive on density and conductivity were studied. The experimental results indicated that relative density of CGO doped 2.0 mol% MnO1.333 (2Mn-CGO) increased within a certain temperature range because of the occurrence of viscous flow sintering, it was 89.5% at the sintering temperature of 1100 oC and higher 6.8% than that of CGO. Moreover, it can reach 91.1% for 2Mn-CGO at the sintering temperature of 1200 oC. The conductivity measured at 700 oC of 2Mn-CGO sintered at 1100 oC was 4.52×10-2 S/cm, which is higher than that of CGO. The value of 2Mn-CGO with the sintering temperature of 1200 oC was 5.24×10-2S/cm, which dropped slightly than that of CGO, this was caused by blocking of the migration of carriers.

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Periodical:

Key Engineering Materials (Volumes 531-532)

Edited by:

Chunliang Zhang and Liangchi Zhang

Pages:

362-367

Citation:

Z. J. Zhang "Effect of Doped Manganese Oxide on the Properties of Ce0.8Gd0.2O2-δ Solid Electrolyte", Key Engineering Materials, Vols. 531-532, pp. 362-367, 2013

Online since:

December 2012

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