CAJ | 학술논문

采用多铁低锌高居里点配方制备锰锌功率铁氧体材料，可大大提高饱和磁通密度Bs，但Pcv-T曲线尾巴上翘；为压平陡翘曲线掺入Co3+、Ti4+离子，另添加K1+、Li1+等碱金属离子可缓解以致消除Pcv-T曲线凹谷；优选掺杂体系和精细控制气氛烧结工艺，可有效提高材料密度，获得兼具TDK公司PC90的高Bs和 PC95的宽温低功耗特性材料，满足客户对宽温高直流叠加低功耗性能的要求。
채용다철저자고거리점배방제비맹자공솔철양체재료，가대대제고포화자통밀도Bs，단Pcv-T곡선미파상교；위압평두교곡선참입Co3+、Ti4+리자，령첨가K1+、Li1+등감금속리자가완해이치소제Pcv-T곡선요곡；우선참잡체계화정세공제기분소결공예，가유효제고재료밀도，획득겸구TDK공사PC90적고Bs화 PC95적관온저공모특성재료，만족객호대관온고직류첩가저공모성능적요구。
MnZn ferrite was prepared using composition of high Fe, low Zn and high Curie temperature, of which the saturation magnetic flux density was greatly improved, but the Pcv-T curve exhibits a cocking-up tail. Adding Co3+, Ti4+and K+, Li+can “planish”the Pcv-T curve. Optimization of doping and fine control of atmosphere sintering can improve material density. As a result, ferrite material was developed with wide operation temperature and low power loss, featureing both high Bs of TDK PC 90 and wide temperature, low power loss of PC95, meeting application requirement for high operation temperature, high DC-bias and low power loss.