Add time:08/12/2019         Source:sciencedirect.com

The processing parameters have been optimized to achieve highly pure and fully dense pellets of calcium cobalt oxide (Ca3Co4O9) from solid-state ball milled calcium carbonate and cobalt oxide mixtures, calcined at optimized temperature and time, and consolidated by hot-pressing. The microscopic, spectroscopic, and thermal analysis suggest samples with longer ball-milling time require less calcination time for synthesizing highly pure crystalline phases of Ca3Co4O9, and provide 99.2 ± 0.5% relative density.

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