Article ID Journal Published Year Pages File Type
1460563 Ceramics International 2014 6 Pages PDF
Abstract

The ionic charge of transport (αi⁎) and partial electronic conductivity under an ion-blocking condition (σ′eσ′e), and chemical diffusivity of oxygen (D˜) of La2NiO4+δ (LNO) is measured as a function of oxygen partial pressure (pO2) at 1000 °C. The defect diffusivity of interstitial oxygen (DiDi) and oxygen self-diffusivity (DODO) are calculated from the data of D˜. The values of Onsager transport coefficients are extracted from the blocking cell data by constructing an Onsager matrix. Various results are compared with the data in literature, which show close agreement.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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