Ga^(3+)替代Fe^(3+)对BaW铁氧体纤维微结构和磁性能的影响  

Effect of Ga^(3+)Substitution for Fe^(3+)on the Microstructure and Magnetic Properties of BaW Ferrite Fibers

作　　者：曹冰菲 张淑贤 孙俊玲 钟蕾 訾振发 Cao Bingfei;Zhang Shuxian;Sun Junling;Zhong Lei;Zi Zhenfa(School of Physics and Materials Engineering,Hefei Normal University,Anhui,230601;School of Electronic and Information Engineering,Anhui University,Anhui,230601)

机构地区：[1]合肥师范学院物理与材料工程学院,安徽230601 [2]安徽大学电子信息工程学院,安徽230601

出　　处：《当代化工研究》2024年第18期33-35,共3页Modern Chemical Research

基　　金：安徽省高校学科拔尖人才学术资助项目“W型铁氧体复合物纤维的微波吸收性能研究”(项目编号:gxbjZD2022050);安徽省高校优秀科研创新团队“能源存储与转换材料”(项目编号:2023AH010048);大学生创新创业训练计划项目“Y型铁氧体Ba0.5Sr1.5Zn2Fe12O22的磁热效应研究”(项目编号:202314098041)。

摘　　要：本文采用高压静电纺丝法成功合成了BaZn_(2)Fe_(16-x)Ga_(x)O_(27)(x=0.0,0.3,0.6,0.9,1.2,1.5)系列W型铁氧体样品。X射线衍射结果表明所合成系列样品均为纯相,空间群为P63/mmc。扫描电子显微镜结果显示烧结后样品呈六角片状,直径约为10μm,厚度约为2μm。红外光谱测试表明波数420 cm^(-1)和580 cm^(-1)分别对应W型铁氧体八面体位和四面体位的Fe^(3+)-O^(2-)键振动产生的特征吸收峰。磁滞回线显示随着Ga^(3+)替代量x的增加,饱和磁化强度先增大后减小,在x=0.6时达到最大值52.84 emu/g。矫顽力经历了先降低再升高后降低的过程。In this paper,W-type ferrite samples of BaZn_(2)Fe_(16-x)Ga_(x)O_(27)(x=0.0,0.3,0.6,0.9,1.2,1.5)are successfully synthesized by high-voltage electrospinning method.The X-ray diffraction results show that these samples are pure phase and the space group is P63/mmc.The results of scanning electron microscope indicate that the agglomerated grains are hexagonal-plate shape,with a diameter of about 10μm and a thickness of about 2μm.The infrared spectrum shows that wave numbers 420 cm^(-1) and 580 cm^(-1) correspond to the characteristic absorption peaks generated by the vibration of Fe^(3+)-O^(2-)bonds in the octahedral and tetrahedral sites of W-type ferrites,respectively.In the M-H diagram,the saturation magnetization increases first and then decreases with the increase of the substitution amount x of Ga^(3+),reaching a maximum of 52.84 emu/g when x=0.6.Coer-civity experiences a process of first decreasing,then increasing and finally decreasing.

关 键 词：磁性材料 W型钡铁氧体 高压静电纺丝技术 磁性纤维 镓的替代 

分 类 号：O482.54[一般工业技术—材料科学与工程]