Crystal structure, oxygen nonstoichiometry and diffusion mobility in some ferrites-nickelites

2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE) Pub Date : 2012-09-01 DOI:10.1109/OMEE.2012.6464780

V. Vashook, J. Rebello, J. Chen, L. Vasylechko, D. Trots, J. Zosel, U. Guth

引用次数: 1

Abstract

Crystal structure, thermal expansion, oxygen non-stoichiometry, electrical conductivity and diffusion characteristics of two analogous LaFe0.7Ni0.3O3−δ and PrFe0.7Ni0.3O3−δ compositions were investigated depending on temperature (20–1000 °C) and oxygen partial pressure (0.6–21000 Pa). The found oxygen diffusion and oxygen exchange coefficients for the both compositions at similar conditions are near to each other and varied in the range of 1·10⁻⁷–1·10⁻⁵ cm²·s⁻¹ and 5·10⁻⁶–1·10⁻⁴ cm·s⁻¹, respectively.

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某些铁氧体-镍的晶体结构、氧非化学计量和扩散迁移率

研究了两种相似成分LaFe0.7Ni0.3O3−δ和PrFe0.7Ni0.3O3−δ随温度(20 ~ 1000℃)和氧分压(0.6 ~ 21000 Pa)变化的晶体结构、热膨胀、氧非化学计量学、电导率和扩散特性。在相似条件下，两种组分的氧扩散系数和氧交换系数相近，变化范围分别为1·10−7 ~ 1·10−5 cm2·s−1和5·10−6 ~ 1·10−4 cm·s−1。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)

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