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Abstract Fully dense hot-pressed calcium cobalt oxide (Ca 3 Co 4 O 9 ) pellet exhibits textures with Lotgering factor of unity and supports the ideally aligned (00 l ),… Click to show full abstract
Abstract Fully dense hot-pressed calcium cobalt oxide (Ca 3 Co 4 O 9 ) pellet exhibits textures with Lotgering factor of unity and supports the ideally aligned (00 l ), l = 2, 3, 4, 5 crystallographic planes associated in the ceramics. The DC electrical conductivity of the Ca 3 Co 4 O 9 pellets connected to metal/Ca 3 Co 4 O 9 -pellet/metal device structures in vertical and lateral configurations follow Mott's variable range hopping. The exhibition of anisotropic ratio of ~ 10 between the room temperature conductivity values in both the structures, reveal the presence of partially oriented textured grains in the currently developed Ca 3 Co 4 O 9 ceramics.
Journal Title: Ceramics International
Year Published: 2018
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