Fully dense hot pressed calcium cobalt oxide ceramics. Issue 6 (15th April 2018)

• Record Type: Journal Article
• Authors: Puri, Nidhi; Tandon, Ram P.; Mahapatro, Ajit K.
• Is Part Of: Ceramics international. Volume 44:Issue 6(2018)
• Page Start: 6337
• Page End: 6342
• Publication Date: 2018-04-15
• Subjects: D. Ca3Co4O9 -- A. ball milling -- A. hot press; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2018.01.024
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: The processing parameters have been optimized to achieve highly pure and fully dense pellets of calcium cobalt oxide (Ca3 Co4 O9 ) 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 Ca3 Co4 O9, and provide 99.2 ± 0.5% relative density. Graphical abstract: fx1