TY - JOUR
T1 - Influence of Mg2+ doping on the electromagnetic properties of Li-Zn ferrites
AU - Song, Jie
AU - Chen, Zhigang
AU - Xu, Naicen
AU - Wang, Lixi
AU - Zhang, Qitu
PY - 2010/12
Y1 - 2010/12
N2 - Li-Zn ferrites doped with Mg2+, Li0.1Zn0.8Mgx Fe2.1-xO4 (x= 0, 0.02, 0.04, 0.06, 0.08), were prepared by Sol-Gel combustion method. The analysis methods of TG-DSC, XRD, FT-IR, SEM and network analyzer (Agilent 8722ET) were employed to analyze the formation process, structure, surface morphology and electromagnetic properties of samples. The results showed that ferrite powders with pure spinel phase were formed when x≤0.06. The lattice parameters of ferrites first increased and then decreased with substitution amount. Appropriate amounts of Mg2+ substitution could adjust microwave electromagnetic parameters magically. The tan δ exhibited two maximal peaks at the frequency of 6.5 GHz and 15 GHz, respectively, and the peak values of tan δ were about 0.11 and 0.54 when x = 0.06. It was indicated that the microwave electromagnetic loss properties were excellent when x = 0.06. Furthermore, the reasons had also been discussed using electromagnetic theory.
AB - Li-Zn ferrites doped with Mg2+, Li0.1Zn0.8Mgx Fe2.1-xO4 (x= 0, 0.02, 0.04, 0.06, 0.08), were prepared by Sol-Gel combustion method. The analysis methods of TG-DSC, XRD, FT-IR, SEM and network analyzer (Agilent 8722ET) were employed to analyze the formation process, structure, surface morphology and electromagnetic properties of samples. The results showed that ferrite powders with pure spinel phase were formed when x≤0.06. The lattice parameters of ferrites first increased and then decreased with substitution amount. Appropriate amounts of Mg2+ substitution could adjust microwave electromagnetic parameters magically. The tan δ exhibited two maximal peaks at the frequency of 6.5 GHz and 15 GHz, respectively, and the peak values of tan δ were about 0.11 and 0.54 when x = 0.06. It was indicated that the microwave electromagnetic loss properties were excellent when x = 0.06. Furthermore, the reasons had also been discussed using electromagnetic theory.
KW - Electromagnetic properties
KW - Li-Zn ferrites
KW - Mg doping
KW - Sol-Gel combustion method
UR - http://www.scopus.com/inward/record.url?scp=78651073841&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:78651073841
SN - 1004-2474
VL - 32
SP - 1041
EP - 1045
JO - Yadian Yu Shengguang/Piezoelectrics and Acoustooptics
JF - Yadian Yu Shengguang/Piezoelectrics and Acoustooptics
IS - 6
ER -