Reseach On M-type Ba Ferrite Materials Prepared By Low Temperature Co-fire

The work of this paper is to research using the ceramics technology manufacturingmillimeter-wave gyromagnetic ferrite component’s hex M-type Ba ferrite materials usedfor characterization of morphology and composition as well as the related magneticchange and how to realize low temperature co-fire. M-type Ba ferrite materials wasprepared by the oxide method.Using adjusting to change the basic magnetic materials,and studing materials of low temperature co-fire technology.Because the key step in theLTCC technology requires ferrite materials need to be able to burn with inner conductorand ceramic structure formation, usually the co-fire temperature is low (850℃to950℃), so for achiving M type Ba ferrite of low temperature co-fire is critical, at thesame time also require material reaches a certain performance index.Experiment process is to determine the first experiment process, We use a singlechange variable method to research the calcining,time of first milling,time of secondmilling this three factor how to affect M type of barium ferrite materials.We find out theoptimal preparation process that to make sure the M type of barium ferrite materialswith good microstructure, with high frequency magnetic components.Then when thelow temperature co-fire is primarily the study of burning aid to reduce the co-firetemperature used in line with the type glass BBSZ to implement M-type Ba ferrite oflow temperature co-fire, and test the performance of low temperature co-fire materials.Finally through the ZnTi ion substitute of M type ferrite materials, and select the threelow temperature co-fire point to study the saturation magnetization strength, the changeof coercivity. By barium ferrite with low temperature co-fire is achieved, because the Mtype barium ferrite has high magnetocrystalline anisotropy of diamond, order lowerco-fire temperature is expected to achieve through LTCF (low temperature co-firingferrite) chip technology development of microwave/millimeter wave gyromagneticdevices.