磁性材料及器件
磁性材料及器件
자성재료급기건
JOURNAL OF MAGNETIC MATERIALS AND DEVICES
2014年
1期
40-43
,共4页
NiZn铁氧体%ZnO含量%烧结温度%饱和磁通密度
NiZn鐵氧體%ZnO含量%燒結溫度%飽和磁通密度
NiZn철양체%ZnO함량%소결온도%포화자통밀도
NiZn ferrite%ZnO content%sintering temperature%saturation magnetic flux density
采用传统氧化物法制备了Ni0.49-xZn0.398+xCu0.112Fe2O4(x=0，0.014，0.026，0.038，0.05)铁氧体材料，研究了主配方及烧结温度对材料电磁性能和显微结构的影响。研究表明，ZnO含量对NiZn铁氧体材料的起始磁导率μi、饱和磁通密度Bs、Q值和比损耗系数tanδ/μi影响较大；当x=0.026时，NiZn铁氧体材料的饱和磁通密度最高；饱和磁通密度随烧结温度先升高后降低,当烧结温度为1100℃时，晶粒尺寸分布均匀、结构致密性好，其饱和磁通密度达到最大。在本研究中，最佳工艺参数为：x=0.026，烧结温度1100℃。
採用傳統氧化物法製備瞭Ni0.49-xZn0.398+xCu0.112Fe2O4(x=0，0.014，0.026，0.038，0.05)鐵氧體材料，研究瞭主配方及燒結溫度對材料電磁性能和顯微結構的影響。研究錶明，ZnO含量對NiZn鐵氧體材料的起始磁導率μi、飽和磁通密度Bs、Q值和比損耗繫數tanδ/μi影響較大；噹x=0.026時，NiZn鐵氧體材料的飽和磁通密度最高；飽和磁通密度隨燒結溫度先升高後降低,噹燒結溫度為1100℃時，晶粒呎吋分佈均勻、結構緻密性好，其飽和磁通密度達到最大。在本研究中，最佳工藝參數為：x=0.026，燒結溫度1100℃。
채용전통양화물법제비료Ni0.49-xZn0.398+xCu0.112Fe2O4(x=0，0.014，0.026，0.038，0.05)철양체재료，연구료주배방급소결온도대재료전자성능화현미결구적영향。연구표명，ZnO함량대NiZn철양체재료적기시자도솔μi、포화자통밀도Bs、Q치화비손모계수tanδ/μi영향교대；당x=0.026시，NiZn철양체재료적포화자통밀도최고；포화자통밀도수소결온도선승고후강저,당소결온도위1100℃시，정립척촌분포균균、결구치밀성호，기포화자통밀도체도최대。재본연구중，최가공예삼수위：x=0.026，소결온도1100℃。
The Ni0.49-xZn0.398+xCu0.112Fe2O4 (x=0.0,0.014,0.026,0.038,0.05) ferrites were prepared by conventional ceramic technique, and the effects of composition and sintering temperature on magnetic properties and microstructure were investigated. It is found that ZnO content has significant influence on initial permeability (μi), saturation magnetic flux density (Bs), Q value and relative loss factor (tanδ/μi). As the ZnO content x=0.026, the saturation magnetic flux density of NiZn ferrite was higher than that of the others;and the Bs reaches a maximum when the sintering temperature was 1100℃, for its uniform grain size and densification. In this research, the optimum process parameters can be determined as x=0.026 and sintering temperature of 1100℃.
