材料科学与工程学报2024，Vol.42Issue(2)：232-237,253,7.DOI:10.14136/j.cnki.issn1673-2812.2024.02.009
Sm/Gd-Nd协同置换对高介电常数石榴石微波铁氧体性能的影响
Effects of Sm/Gd-Nd Co-Substituting on the Properties of High Dielectric Constant Microwave Garnet Ferrites
摘要
Abstract
Garnet ferrites with high dielectric constant and high power were synthesized by a solid phase process.The high dielectric constant and high power characteristics were integrated by co-substituting Y3+ with Gd3+-Nd3+,Sm3+-Nd3+ and Bi3+ in regular garnet ferrites.The electromagnetic properties of ferrites prepared at different temperatures were investigated.Crystal structure and micro morphology of ferrites were characterized by X-ray diffractometer and scanning electron microscope,and all ferrites were pure garnet phase.High permittivity and high power were integrated well in ferrites in this work,and other properties were also excellent,such as tanδ<2×10-4 and Tc>260℃.Two kinds of ferrites show different sintering features.Sm-Nd co-substituted ferrites were overburnt at 1090℃and 1100℃,and the electromagnetic properties deteriorated.However,the electromagnetic properties of Gd-Nd co-substituted ferrites were stable at all sintering temperatures.关键词
高介电常数/高功率/石榴石铁氧体/电磁性能/烧结温度Key words
High permittivity/High power/Garnet ferrite/Electromagnetic property/Sintering temperature分类
信息技术与安全科学引用本文复制引用
谢斌,杨菲,任仕晶..Sm/Gd-Nd协同置换对高介电常数石榴石微波铁氧体性能的影响[J].材料科学与工程学报,2024,42(2):232-237,253,7.基金项目
四川省科技计划资助项目(22ZDYF3321) （22ZDYF3321）
