Synthesis and magnetic properties of CuAlO₂ from high-energy ball-milled Cu₂OAl₂O₃ mixture

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• 作者：M. Senna^a ; P. Billik^b ; ^c ; ^{billik@fns.uniba.sk} ; A. Ye. Yermakov^d ; M. &Scaron ; krá ; tek^c ; M. Majerová ; ^c ; M. Čaplovičová ; ^e ; M. Miču&scaron ; í ; k^f ; L. Čaplovič^g ; M. Bujdo&scaron ; ^h ; M. Noskoⁱ
• 关键词：High-energy ball milling ; Solid state reactions ; CuAlO2 delafossite ; Antiferro magnetism ; α-Al2O3
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：695
• 期：Complete
• 页码：2314-2323
• 全文大小：3071 K
• 卷排序：695

文摘

Positive effect of high-energy ball milling on the low temperature reactivity. Solid state synthesis of CuAlO2 phase at 900 °C without regrinding procedure. Transition alumina effects on the crystallite size reduction of Cu2O down to ∼8 nm. Core–shell configuration of Cu2O nanoparticles. A unique weak ferromagnetic feature of CuAlO2 associated with the structural paramagnetic Cu2+ and Fe3+ ions.