Published 2009 | Version v1
Miscellaneous Open

Magnetic and microstructural properties of Ni-Zn ferrites synthesized and sintered by microwave energy

Creators

  • 1. Universidade Federal de Campina Grande (UFCG), PB (Brazil). Dept. de Engenharia de Materiais
  • 2. Universidade Federal de Sao Carlos (UFScar), SP (Brazil). Dept. de Engenharia de Materiais
  • 3. Universidade de Sao Paulo (IF/USP), SP (Brazil). Inst. de Fisica

Description

The soft ferrites (or soft) and the Ni-Zn type are composed of spinel with cubic structure, which exhibit a permanent magnetization, called ferrimagnetism. Thus, this work will be assessed the structure and magnetic properties of ferrites Ni0,5Zn0,5Fe2O4 prepared by combustion reaction using microwave energy as a source of heat and urea as fuel and after sintering by microwave energy. The synthesized powders were compacted by uniaxial pressing. The synthesized powders and the samples after sintering were characterized by XRD, SEM and magnetic measures. The diffractogram X-ray powder and the sintered samples showed the presence of the desired phase Ni0,5Zn0,5Fe2O4 in both cases. The powders and sintered samples resulted in the Ms value of 8.09 emu/g and 67.73 emu/g, respectively. (author)

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Additional details

Additional titles

Original title (Portuguese)
Propriedades magneticas e microestruturais de ferritas Ni-Zn sintetizadas e sinterizadas oir energia de microondas

Publishing Information

Imprint Pagination
10 p.
Report number
INIS-BR--10313

Conference

Title
53. Brazilian congress on ceramics
Original Conference Title
53. Congresso brasileiro de ceramica
Dates
7-10 Jun 2009
Place
Guaruja, SP (Brazil)

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
42105341
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CRYSTALLOGRAPHY; DIFFUSE SCATTERING; FERRITES; IRON OXIDES; MAGNETITE; NIOBIUM; PARTICLE SIZE; PARTICLES; POWDER METALLURGY; POWDERS; SCANNING ELECTRON MICROSCOPY; SINTERED MATERIALS; SPINELS; STRUCTURAL CHEMICAL ANALYSIS; X RADIATION; X-RAY DIFFRACTION; ZINC
Descriptors DEC
CHALCOGENIDES; COHERENT SCATTERING; DIFFRACTION; ELECTROMAGNETIC RADIATION; ELECTRON MICROSCOPY; ELEMENTS; FERRIMAGNETIC MATERIALS; IONIZING RADIATIONS; IRON COMPOUNDS; IRON ORES; MAGNETIC MATERIALS; MATERIALS; METALLURGY; METALS; MICROSCOPY; MINERALS; ORES; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; RADIATIONS; REFRACTORY METALS; SCATTERING; SIZE; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS