Cold-sintered Ni0.2Cu0.2Zn0.6Fe2O4-Li2MoO4 ceramic composites with enhanced magnetodielectric properties. Issue 2 (February 2021)

• Record Type: Journal Article
• Authors: Chen, Naichao; Xiao, Bin; Xu, Xinwei; Sun, Tao; Chen, Meiyu; Hu, Renchao; Deng, Xinglei; Chen, Xianqiang; Wang, Hong
• Is Part Of: Journal of the European Ceramic Society. Volume 41:Issue 2(2021)
• Page Start: 1310
• Page End: 1316
• Publication Date: 2021-02
• Subjects: Cold sintering process -- Magnetodielectric composite -- Permittivity -- Permeability; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2020.09.034
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: In this paper, (1- x )Li2 MoO4 (LMO)- x Ni0.2 Cu0.2 Zn0.6 Fe2 O4 (NCZO) ceramic composites were consolidated using cold sintering method at a temperature of 150 °C, which is far below the sintering temperature of NZFO ceramic-based systems via conventional ceramic preparation method. The phase composition, microstructure, dielectric properties and magnetic properties of the as-cold-sintered LMO-NCZO ceramic composites were studied. The relative density of all composites is larger than 95 % at a cold sintering temperature of 150 °C for 30 min under a uniaxial pressure of 200 MPa. XRD results showed that the composites were only composed of two phases. SEM revealed that the NCZO particles were enwrapped by the LMO phase. The 0.46LMO-0.54NCZO ceramic composite exhibited excellent magnetodielectric properties with an effective permittivity of about 8.3, a dielectric loss of 0.003, a permeability of 7 and a magnetic loss of 0.024 (@10 MHz), which make it potentially applicable in the miniaturization of electronic devices.