Influence of calcination temperature on the morphology and magnetic properties of Ni-Zn ferrite applied as an electromagnetic energy absorber

被引：40

作者：

Costa, A. C. F. M. ^{[1
]}

Diniz, A. P. ^{[1
]}

Silva, V. J. ^{[1
]}

Kiminami, R. H. G. A. ^{[2
]}

Cornejo, D. R. ^{[3
]}

Gama, A. M. ^{[4
]}

Rezende, M. C. ^{[4
]}

Gama, L. ^{[1
]}

机构：

[1] UFCG UAEMa, BR-58109970 Campina Grande, PB, Brazil

[2] UFSCar DEMa, BR-13565905 Sao Carlos, SP, Brazil

[3] Univ Sao Paulo, Inst Phys, BR-05508900 Sao Paulo, Brazil

[4] CTA Mat Div, BR-12228904 Sao Jose Dos Campos, Brazil

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 483卷 / 1-2期

关键词：

Ni-Zn ferrite; Calcination temperature; Electromagnetic radiation absorbers; COMBUSTION SYNTHESIS;

D O I：

10.1016/j.jallcom.2008.08.108

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An evaluation was made of the influence of calcination temperatures on the structure, morphology and eletromagnetic properties of Ni-Zn ferrite powders. To this end, Ni0.5Zn0.5Fe2O4 ferrite powders were prepared by combustion reaction and calcined at temperatures of 800, 1000 and 1200 degrees C/2 h. The resulting powders were characterized by XRD, SEM and reflectivity measurements in the frequency bands of 8-12 GHz. The results demonstrated that raising the calcination temperature increased the particle sizes of the powders of all the systems in question, improving the reflectivity of the materials. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：563 / 565

页数：3

共 9 条

[1] Combustion synthesis, sintering and magnetical properties of nanocristalline Ni-Zn ferrites doped with samarium [J].

Costa, ACFM ;

Morelli, MR ;

Kiminami, RHGA .

JOURNAL OF MATERIALS SCIENCE, 2004, 39 (05) :1773-1778

[2] Effect of heating conditions during combustion synthesis on the characteristics of Ni0.5Zn0.5Fe2O4 nanopowders [J].

Costa, ACFM ;

Tortella, E ;

Morelli, MR ;

Kaufman, M ;

Kiminami, RHGA .

JOURNAL OF MATERIALS SCIENCE, 2002, 37 (17) :3569-3572

[3]

Gupta S. C., 1993, Journal of the Institution of Electronics and Telecommunication Engineers, V39, P197

[4] 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

[5] MICROWAVE ABSORBING PROPERTIES OF SINTERED NI-ZN FERRITE [J].

KIM, SS ;

HAN, DH ;

CHO, SB .

IEEE TRANSACTIONS ON MAGNETICS, 1994, 30 (06) :4554-4556

[6]

Klung H., 1962, X-ray Diffraction Procedures

[7]

LIMA RC, 2003, CERAM REVISIT, V49

[8] Initial permeability studies on Al3+ and Cr3+ substituted Ni Zn ferrites [J].

Sankpal, AM ;

Kakatkar, SV ;

Chaudhari, ND ;

Patil, RS ;

Sawant, SR ;

Suryavanshi, SS .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 1998, 9 (02) :173-179

[9]

SVEUM LK, 1995, CERAM T, V47, P305

← 1 →