TY - GEN
T1 - The Microwave Absorbing Performance of Co2+ - Ti4+ Co-doped Barium Ferrite Ceramics
AU - Song, Zhenjia
AU - Li, Jun
AU - Shi, Kouzhong
AU - He, San
AU - Yuan, Chengxun
AU - Zhou, Zhongxiang
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - M-type barium ferrite BaFe12O19 (BaM) is widely used in magnetic recording and microwave absorbing and doped BaM generally has a better performance on microwave absorbing property. The magnetic performance and microwave absorbing property for doped barium ferrite mathbf{Ba}(mathbf{CoTi})-{boldsymbol{x}}mathbf{Fe}-{12-2boldsymbol{x}}mathbf{O}-{19} (boldsymbol{x}=0.2, 0.4, 0.6) synthesized by sol-gel method are investigated in this work. With the increase of doping amount, the boldsymbol{M}-{mathbf{r}} and boldsymbol{H}-{mathbf{c}} decrease rapidly which may be attributed to the doping of Co2+ and Ti4+ ions decreases the magnetic and the magnetic anisotropy constant quickly. The microwave absorbing results show that the property of reflection loss can be modulated by thickness. The maximum reflection loss of absorber Ba(CoTi)0.4Fe11.2O19-PVA can reach -36.37 dB at 15.44 GHz at 4.5 mm with a bandwidth over - 10 dB 2.08 GHz while Ba(CoTi)0.6Fe10.8O19-PVA can reach -29.51 dB at 17.92 GHz at 3.6 mm.
AB - M-type barium ferrite BaFe12O19 (BaM) is widely used in magnetic recording and microwave absorbing and doped BaM generally has a better performance on microwave absorbing property. The magnetic performance and microwave absorbing property for doped barium ferrite mathbf{Ba}(mathbf{CoTi})-{boldsymbol{x}}mathbf{Fe}-{12-2boldsymbol{x}}mathbf{O}-{19} (boldsymbol{x}=0.2, 0.4, 0.6) synthesized by sol-gel method are investigated in this work. With the increase of doping amount, the boldsymbol{M}-{mathbf{r}} and boldsymbol{H}-{mathbf{c}} decrease rapidly which may be attributed to the doping of Co2+ and Ti4+ ions decreases the magnetic and the magnetic anisotropy constant quickly. The microwave absorbing results show that the property of reflection loss can be modulated by thickness. The maximum reflection loss of absorber Ba(CoTi)0.4Fe11.2O19-PVA can reach -36.37 dB at 15.44 GHz at 4.5 mm with a bandwidth over - 10 dB 2.08 GHz while Ba(CoTi)0.6Fe10.8O19-PVA can reach -29.51 dB at 17.92 GHz at 3.6 mm.
KW - M-type barium ferrites
KW - magnetic performance
KW - microwave absorption
UR - https://www.scopus.com/pages/publications/85062826505
U2 - 10.1109/ISAPE.2018.8634230
DO - 10.1109/ISAPE.2018.8634230
M3 - 会议稿件
AN - SCOPUS:85062826505
T3 - 2018 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 - Proceedings
BT - 2018 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018
Y2 - 3 December 2018 through 6 December 2018
ER -