PREPARASI, SINTESIS DAN KARAKTERISASI MATERIAL OKSIDA Ca3Co4O9 [Preparation, Synthesis and Characterization Of Ca3Co4O9 Oxide Material]
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Abstract
The study was conducted to make Ca3Co4O9 oxide material using solid state reaction process. Ca3Co4O9 oxide material is a thermoelectric material that has good stability and has been widely applied. The raw materials are CaO and CoCO3 powders. Synthesis process begins with the weighing of raw materials, followed by grinding, calcination, compaction and sintering. Samples sintered at temperatures 700, 750, 800, dan 850 °C for 24 hours in air atmospheric conditions. X-ray diffraction pattern shows that the majority of the reflection is Ca3Co4O9 phase.
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