Microwave behavior of ferrites prepared via sol-gel method

被引：159

作者：

Giannakopoulou, T ^{[1
]}

Kompotiatis, L ^{[1
]}

Kontogeorgakos, A ^{[1
]}

Kordas, G ^{[1
]}

机构：

[1] NCSR Demokritos, Inst Mat Sci, Athens 15310, Greece

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 246卷 / 03期

关键词：

ferrites; sol-gel; annealing temperature; microwave absorption; matching frequency;

D O I：

10.1016/S0304-8853(02)00106-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ni-ferrites were prepared at different temperatures via sol-gel method. The electromagnetic properties of these materials, namely permittivity and permeability were measured in the 0.1-13 GHz frequency range. Following a mathematical procedure, microwave absorption diagrams were constructed including the dependence of the microwave absorption of ferrite layer on microwave frequency and layer thickness. The permeability spectra broaden and the microwave absorption improves at 9-10 GHz with increase of annealing temperature. (C) 2002 Published by Elsevier Science B.V.

引用

页码：360 / 365

页数：6

共 11 条

[1]

ABDULLAH S, 1990, T IEICE JPN E, V73, P1746

[2] Relationship between magnetic properties and microwave-absorbing characteristics of NiZnCo ferrite composites [J].

Cho, SB ;

Kang, DH ;

Oh, JH .

JOURNAL OF MATERIALS SCIENCE, 1996, 31 (17) :4719-4722

[3] ELECTROMAGNETIC-WAVE ABSORBER USING FERRITE ABSORBING MATERIAL DISPERSED WITH SHORT METAL FIBERS [J].

HATAKEYAMA, K ;

INUI, T .

IEEE TRANSACTIONS ON MAGNETICS, 1984, 20 (05) :1261-1263

[4]

*INT CTR DIDFR DAT, 1998, JCPDS

[5] Dependence of microwave absorbing property on ferrite volume fraction in MnZn ferrite-rubber composites [J].

Kim, DY ;

Chung, YC ;

Kang, TW ;

Kim, HC .

IEEE TRANSACTIONS ON MAGNETICS, 1996, 32 (02) :555-558

[6] THIN-LAYER ELECTROMAGNETIC ABSORBER DESIGN [J].

MUSAL, HM ;

HAHN, HT .

IEEE TRANSACTIONS ON MAGNETICS, 1989, 25 (05) :3851-3853

[7] Snoek's limit in high-frequency permeability of polycrystalline Ni-Zn, Mg-Zn, and Ni-Zn-Cu spinel ferrites [J].

Nakamura, T .

JOURNAL OF APPLIED PHYSICS, 2000, 88 (01) :348-353

[8] Microwave absorptive behavior of ZnCo-substituted W-type Ba hexaferrite nanocrystalline composite material [J].

Ruan, SP ;

Xu, BK ;

Suo, H ;

Wu, FQ ;

Xiang, SQ ;

Zhao, MY .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 212 (1-2) :175-177

[9] Complex permittivity, permeability, and X-band microwave absorption of CaCoTi ferrite composites [J].

Singh, P ;

Babbar, VK ;

Razdan, A ;

Puri, RK ;

Goel, TC .

JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :4362-4366

[10] Microwave absorption studies of Ca-NiTi hexaferrite composites in X-band [J].

Singh, P ;

Babbar, VK ;

Razdan, A ;

Srivastava, SL ;

Goel, TC .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2000, 78 (2-3) :70-74

← 1 2 →