Enhanced magnetoelectric properties in lead-free Ni0.83Co0.15Cu0.02Fe1.9O4-δ -Na0.5Bi0.5TiO3 composites by spark plasma sintering

被引：25
作者：
Mudinepalli, Venkata Ramana [1 ]
Song, S. H. [1 ]
Murty, B. S. [2 ]
机构：
[1] Harbin Inst Technol, Shenzhen Grad Sch, Shenzhen Key Lab Adv Mat, Shenzhen 518055, Peoples R China
[2] Indian Inst Technol, Dept Met & Mat Engn, Nanotechnol Lab, Madras 600036, Tamil Nadu, India
来源：
SCRIPTA MATERIALIA | 2014年 / 82卷
关键词：
Ferroelectric materials; Ferromagnetic materials; Spark plasma sintering; Magnetostrictive materials; ELECTRICAL-PROPERTIES; MAGNETIC-PROPERTIES; SOLID-SOLUTION; CERAMICS; FERRITE;
D O I：
10.1016/j.scriptamat.2014.03.004
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Lead-free multiferroic particulate composites of Ni0.83Co0.15Cu0.02Fe1.9O4-delta -Na0.5Bi0.5TiO3 (NCCF-NBT) ceramics are synthesized by spark plasma sintering in conjunction with high-energy ball milling. The exhibition of ferromagnetic and ferroelectric characteristics demonstrates that these materials are multiferroic in nature. Magnetic measurements indicate that the composites exhibit an excellent combination of saturation magnetization and coercivity at room temperature. In addition, they have a large magnetoelectric voltage sensitivity, which is up to 663 mV cm(-1) Oe(-1) under a magnetic field of 5 kOe for the 0.5NCCF-0.5NBT composite. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页码：9 / 12
页数：4
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