Wide Ranged La Modification in CCTO Ceramics Through Sol-Gel: Effect on Microstructure and Dielectric Properties
作者： Nirupam Banerjee , Jayanta Parui , S. B. Krupanidhi
DOI: 10.1080/10584587.2010.492023
关键词:
摘要: Sol-Gel method was employed to synthesize pure and wide ranged La-modified CaCu3Ti4O12 ceramics using mixed acetate-nitrate-alcoxide individual metal-ion precursors. SEM pictures revealed that grain size monotonously decreases with the extent of La incorporation. All prepared manifested dielectric constant in range similar 10(3)-10(4). Dielectric loss found decrease incorporation got optimized for 20% La3+ while retaining its high which may be industrially important. Room temperature Impedance spectroscopy suggested resistance is responsible reduction according Internal Barrier Layer Capacitor (IBLC) model.
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