STUDY OF TEMPERATURE SINTERING BY MICROWAVE ENERGY IN FERRITES Ni0,5Zn0,5Fe2O4

被引：1

作者：

Diniz, Veronica C. S. ^{[1
]}

Vieira, Debora A. ^{[1
]}

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

Cornejo, Daniel ^{[3
]}

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

机构：

[1] Univ Fed Campina Grande, Dept Mat Engn, BR-58429900 Campina Grande, PB, Brazil

[2] Univ Fed Sao Carlos, Dept Mat Engn, BR-13565905 Sao Carlos, SP, Brazil

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

来源：

20TH BRAZILIAN CONFERENCE ON MATERIALS SCIENCE AND ENGINEERING | 2014年 / 775-776卷

关键词：

sintering; microwave energy; Ni-Zn ferrite;

D O I：

10.4028/www.scientific.net/MSF.775-776.410

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study proposes to evaluate the influence of the variation of sintering temperature on microstructural characteristics and magnetic ferrite Ni0,5Zn0,5Fe2O4 sintered by microwave energy. The samples were sintered at 900, 1000, 1100 and 1200 C for exposure time of 10 minutes, with rate 50 degrees C/minutes and characterized by density and porosity, X-ray diffraction, scanning electron microscopy and magnetic measurements. The results indicate that the values of density and apparent porosity were 4.2, 4.5, 4.4 and 4.5 g/cm(3) and 3.4, 2.1, 2.2 and 2.4% for the sintering temperatures of 900, 1000, 1100 and 1200 degrees C respectively. The formation of the ferrite phase Ni0,5Zn0,5Fe2O4 been identified for all conditions of sintering, with grain sizes of 52, 62, 71 and 58nm and saturation magnetization values of 63, 68, 69 and 27 emu/g to temperatures sintering 900, 1000, 1100 and 1200 degrees C respectively.

引用

页码：410 / +

页数：2

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