磁性材料及器件第54卷第2期2023年3月•27•分散剂对YIG铁氧体结构和性能的影响杨菲1,王亚东1,何强1,谢斌1,廖杨1,杨孟锟2(1.中国电子科技集团公司第九研究所,四川绵阳6210002.江苏大学京江学院材料与土木工程学院,江苏镇江212000)摘要:钇铁石榴石(YIG)微波铁氧体具有铁磁共振线宽小、损耗低等特点,是低损耗和宽频带微波铁氧体环行器隔离器的必备材料。通过一次球磨与二次球磨过程中添加不同量分散剂的方法,研究其对YIG微波铁氧体材料结构和性能的影响。实验结果表明,适量分散剂的添加能够有效提高浆料的分散性、稳定性及粒径分布均匀性,防止固体颗粒的二次凝聚及沉降,有效解决纯YIG铁氧体材料球磨过程中的分层现象,有助于提高粉料活性,促进预烧与烧结中的固相反应,提高YIG铁氧体性能的稳定性,拓宽烧结温度。关键词:微波铁氧体;分散剂;粒径;固相反应;性能;烧结温度中图分类号:TM277文献标识码:A文章编号:1001-3830(2023)02-0027-05DOI:10.19594/j.cnki.09.19701.2023.02.006著录格式:杨菲,王亚东,何强,等.分散剂对YIG铁氧体结构和性能的影响[J].磁性材料及器件,2023,54(2):27-31.//YANGFei,WANGYa-dong,HEQiang,etal.EffectsofdispersantadditiononmicrostructureandpropertiesofYIGferrite[J].JournalofMagneticMaterialsandDevices,2023,54(2):27-31.EffectsofdispersantadditiononmicrostructureandpropertiesofYIGferriteYANGFei1,WANGYa-dong1,HEQiang1,XIEBin1,LIAOYang1,YANGMeng-kun21.NinthInstitute,ChinaElectronicsTechnologyCorporation,Mianyang621000,China2.SchoolofMaterialsandCivilEngineering,JiangsuUniversityJingjiangCollege,Zhenjiang212000,ChinaAbstract:Yttriumirongarnet(YIG)microwaveferritefeaturessmallferromagneticresonancelinewidthandlowloss,andsoitisanecessarymaterialforlowlossandwidebandmicrowaveferritecirculatorandisolator.Inthispaper,theeffectofamountofdispersantinprimaryandsecondaryballmillingprocessonthemicrostructureandpropertiesofYIGmicrowaveferritematerialwasanalyzed.Experimentalresultsshowthataddingproperamountofdispersantcaneffectivelyimprovethedispersionandstabilityoftheslurryandthedistributionuniformityofparticlesize,andpreventsolidparticlesfromsecondarycoagulationandsedimentation,resultantlyeffectivelysolvethepureYIGf...