Magnetic properties of highly permeable MnZn ferrites with addition of phosphorous pentoxide
The effects of phosphorous pentoxide on the properties of highly permeable MnZn ferrites have been investigated in this study. It was found that P2O5 addition had a pronounced effect on promoting crystalline grain growth. At the same time, porosity had an initial decrease followed by a subsequent increase with the increase of P2O5 content. Consequently, the initial permeability first increased, and then gradually decreased. Magnetic loss of the samples was also influenced by both grain size and porosity. With 0.06wt％ P2O5 addition, the initial permeability reached to the maximum and the magnetic loss declined to the least. Porosity was the dominating factor to determine the ηB (hysteresis material constant) property of the ferrites. With 0.04wt％ P2O5 addition, porosity decreased to its bottom, accordingly, the ηB value decreased to the least. Synthetically considering high initial permeability, low ηB value and good permeability frequency characteristic, the content of P2O5 addition had better be kept at 0.04wt％..
initial permeability P2O5 addition ηB value grain size porosity
Hua Su Huaiwu Zhang Xiaoli Tang Baoyuan Liu
State Key Laboratory of Electronic Thin Films and Integrated Devices, University of ElectronicScienc State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Scien
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
129-132
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）