Thumbnail
Access Restriction
Open

Author Widodo, Rahmat Doni ♦ Manaf, Azwar
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ BARIUM COMPOUNDS ♦ COMPOSITE MATERIALS ♦ FERRATES ♦ FERRIMAGNETIC MATERIALS ♦ FERROELECTRIC MATERIALS ♦ GRAIN SIZE ♦ LAYERS ♦ LINE BROADENING ♦ MAGNETIC PROPERTIES ♦ MILLING ♦ NANOSTRUCTURES ♦ NUCLEATION ♦ PARTICLE SIZE ♦ POWDERS ♦ SINTERING ♦ STRONTIUM TITANATES ♦ X-RAY DIFFRACTION
Abstract A composite system BaFe{sub 12}O{sub 19}/SrTiO{sub 3} with ferrimagnetic BaFe{sub 12}O{sub 19} phase (BHF) and ferroelectric SrTiO{sub 3} phase (STO) have been prepared by mechanical alloying and subsequent heat treatment. The composite powders were studied by Particle Size Analyze, X-ray diffraction and magnetic measurement. It was found that the particle size of composite powders initially increased due to laminated layers formation of a composite and then decreased to an asymptotic value of ∼8 µm as the milling time extended even to a relatively longer time. However, based on results of line broadening analysis the mean grain size of the particles was found in the nanometer scale. We thus believed that mechanical blending and milling of mixture components for the composite materials has promoted heterogeneous nucleation and only after successive sintering at 1100°C the milled powder transformed into particles of nanograin. In this report, microstructure as well as magnetic properties for the composite is also briefly discussed.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-04-19
Publisher Place United States
Volume Number 1725
Issue Number 1


Open content in new tab

   Open content in new tab