Electromagnetic wave absorption properties of Fe3O4 octahedral nanocrystallines in gigahertz range

被引：31

作者：

Kong, Jing ^{[1
,2
]}

Liu, Jiurong ^{[1
,2
]}

Wang, Fenglong ^{[1
,2
]}

Luan, Liqiang ^{[1
,2
]}

Itoh, Masahiro ^{[3
]}

Machida, Ken-ichi ^{[3
]}

机构：

[1] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Shandong, Peoples R China

[2] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Shandong, Peoples R China

[3] Osaka Univ, Ctr Adv Sci & Innovat, Suita, Osaka 5650871, Japan

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2011年 / 105卷 / 02期

基金：

高等学校博士学科点专项科研基金;

关键词：

MAGNETIC-PROPERTIES; WIDE BANDWIDTH; FERRITE; ABSORBER; NANOCOMPOSITES; PERMEABILITY; NANOPARTICLES; FILMS; ZN;

D O I：

10.1007/s00339-011-6593-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Large-scale octahedral Fe3O4 nanocrystallines with crystalline size of 100-500 nm were synthesized by a facile solvent-thermal method for electromagnetic wave application. The Fe3O4 nanocrystallines showed a higher saturation magnetization (M (s) ) value of 86.8 emu/g and larger coercivity (H (cj) ) value of 255 Oe than that of magnetite polycrystallines because of their good crystallization and dispersion. The epoxy resin composites with 40 vol% Fe3O4 powders provided good electromagnetic wave absorption performance (RL < -20 dB) in the range of 2.0-4.3 GHz over the absorber thicknesses of 3.5-6.8 mm. A minimum RL value of -47 dB was observed at 3.1 GHz with a thickness of 4.8 mm.

引用

页码：351 / 354

页数：4

共 25 条

[1] Ripening during magnetite nanoparticle synthesis: Resulting interfacial defects and magnetic properties [J].

Barker, AJ ;

Cage, B ;

Russek, S ;

Stoldt, CR .

JOURNAL OF APPLIED PHYSICS, 2005, 98 (06)

[2] Preparation and magnetic properties of Ba-Co2Z and Sr-Zn2Y ferrites [J].

Chen, IG ;

Hsu, SH ;

Chang, YH .

JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :6247-6249

[3] Magnetoresistance of magnetite [J].

Coey, JMD ;

Berkowitz, AE ;

Balcells, L ;

Putris, FF ;

Parker, FT .

APPLIED PHYSICS LETTERS, 1998, 72 (06) :734-736

[4] Monodisperse magnetic single-crystal ferrite microspheres [J].

Deng, H ;

Li, XL ;

Peng, Q ;

Wang, X ;

Chen, JP ;

Li, YD .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (18) :2782-2785

[5] CRYSTALLITE SIZE EFFECT ON SATURATION MAGNETIZATION OF FINE FERRIMAGNETIC PARTICLES [J].

HAN, DH ;

WANG, JP ;

LUO, HL .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1994, 136 (1-2) :176-182

[6] Magnetic and electromagnetic wave absorption properties of α-Fe/Z-type Ba-ferrite nanocomposites [J].

Liu, JR ;

Itoh, M ;

Machida, K .

APPLIED PHYSICS LETTERS, 2006, 88 (06)

[7] Gigahertz range electromagnetic wave absorbers made of amorphous-carbon-based magnetic nanocomposites [J].

Liu, JR ;

Itoh, M ;

Horikawa, T ;

Machida, K ;

Sugimoto, S ;

Maeda, T .

JOURNAL OF APPLIED PHYSICS, 2005, 98 (05)

[8] Iron based carbon nanocomposites for electromagnetic wave absorber with wide bandwidth in GHz range [J].

Liu, JR ;

Itoh, M ;

Horikawa, T ;

Taguchi, E ;

Mori, H ;

Machida, K .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2006, 82 (03) :509-513

[9] Z type Ba hexagonal ferrites with tailored microwave properties [J].

Lubitz, P ;

Rachford, FJ .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (10) :7613-7615

[10] A gigahertz-range electromagnetic wave absorber with wide bandwidth made of hexagonal ferrite [J].

Matsumoto, M ;

Miyata, Y .

JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) :5486-5488

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