LTCC系统用低温烧结SrFe_(12)O_(19)铁氧体性能的改善研究（英文）  

Characteristics Improvement of Low-temperature Sintered SrFe_(12)O_(19) Ferrites in LTCC System Applications

作　　者：彭龙[1,2] 李乐中[1] 王瑞[1] 涂小强[1] 胡云[1] 胡跃斌 郭成 

机构地区：[1]成都信息工程大学,四川成都610225 [2]成都市工业职业技术学校博士后创新实践基地,四川成都610213

出　　处：《稀有金属材料与工程》2016年第12期3095-3098,共4页Rare Metal Materials and Engineering

基　　金：Scientific Research Foundation of Education Office of Sichuan Province(13Z198);Young and Middle-aged Academic Leaders of Scientific Research Funds of Chengdu University of Information Technology(J201222)

摘　　要：采用固相法制备M型六角锶铁氧体(SrFe_(12)O_(19))材料,利用Bi_2O_3作为烧结助剂以改善材料的低温烧结特性,系统研究了材料的晶体结构、电学性能和磁学性能。结果表明:当烧结温度降低至900℃时可以获得单相的SrFe_(12)O_(19)铁氧体材料。Bi_2O_3的添加对低温烧结材料的电学性能和磁学性能影响显著,可以提高材料的电阻率ρ、饱和磁化强度M_s、內禀矫顽力H_(ci)和磁晶各向异性场H_a。低温烧结材料的ρ、M_s、H_(ci)和H_a分别可以达到0.42×10~8?·cm、285.6 k A·m^(-1)、347.3 kA·m^(-1)和1546.6 kA·m^(-1),在非互易LTCC(低温共烧陶瓷)铁氧体器件领域具有重要的应用前景。In order to improve the sintering characteristics of the low-temperature sintered M-type hexagonal strontium ferrites（SrFe（12）O（19）） prepared by a solid phase method, the Bi2O3 additive was used as a sintering aid. The crystal structure, electrical properties, and magnetic properties of the ferrites were investigated. The results show that the single phase structural SrFe（12）O（19） ferrites can be obtained even with a low sintering temperature of 900 °C. The Bi2O3 additive is found to possess a significant effect on the electrical properties and magnetic properties for the ferrites sintered at low temperatures enhancing resistivity ρ, saturation magnetization Ms, intrinsic coercivity H（ci）, and magnetic anisotropy field Ha. It is suggested that the low-temperature sintered SrFe（12）O（19） ferrites with ρ of 0.42×10^8 KA·cm, Ms of 285.6 kA ·m^-1, Hci of 347.3 kA ·m^-1, and Ha of 1546.6 kA ·m^-1 provide an important potential application in nonreciprocal LTCC（low temperature co-fired ceramics） ferrite devices.

关 键 词：锶铁氧体 磁晶各向异性场 LTCC技术 铁氧体器件 

分 类 号：TM277[一般工业技术—材料科学与工程]