Published January 2007 | Version v1
Journal article Metadata-only

Study of the surfactant role as a particles size controller of strontium hexa ferrite magnetic powder synthesized by surfactant-assisted sol-gel auto-combustion method

Creators

  • 1. University of Tehran, School of Metallurgy and Materials Engineering, Center of Excellence in Magnetic Materials, Tehran (Iran, Islamic Republic of)
  • 2. University of Tehran, University College of Science, School of Chemistry, Tehran (Iran, Islamic Republic of)

Description

In this research using starting materials of ferric nitrate, strontium nitrate, citric acid and trimethylamine and by the sol-gel auto-combustion method was produced strontium hexa ferrite powder: The effect of adding the hydrocarbon of tetrabutylammonium bromide and surfactant of n-decyltrimethyl ammonium bromide on the formation temperature and particles size of resultant powder was investigated, FTIR results ,showed the occurrence of more complete combustion reaction in the samples with hydrocarbon and surfactant. According to the XRD results, single-phase strontium hexa ferrite is formed in sample without additive by calcination at 900degC, while in samples with hydrocarbon and surfactant formed at 850 and 800degC, respectively. With addition of surfactant, grains and particles size decreased significantly

Availability note (English)

Available from Atomic Energy Organization of Iran

Additional details

Additional titles

Original title (Persian)
Baresi-e naghsh-e surfactant be onvan-e control konande-ye andaze-ye zarat-e poodr-e meghnatisi-e hexaferrit-e stransium-e santez shode be ravesh-e sol-gel-e khod ehteraghi

Publishing Information

Journal Title
Journal of Science, University of Tehran
Journal Volume
33
Journal Issue
no.2
Journal Page Range
p. 33-37
ISSN
1016-1058

INIS

Country of Publication
Iran, Islamic Republic of
Country of Input or Organization
Iran, Islamic Republic of
INIS RN
40001719
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ADDITIVES; CALCINATION; COMBUSTION; COMPARATIVE EVALUATIONS; DEBYE-SCHERRER METHOD; FERRITES; HYDROCARBONS; PARTICLE SIZE; SOL-GEL PROCESS; STRONTIUM COMPOUNDS; SURFACTANTS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHEMICAL REACTIONS; DECOMPOSITION; DIFFRACTION METHODS; EVALUATION; FERRIMAGNETIC MATERIALS; IRON COMPOUNDS; MAGNETIC MATERIALS; MATERIALS; ORGANIC COMPOUNDS; OXIDATION; OXYGEN COMPOUNDS; PYROLYSIS; SIZE; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENT COMPOUNDS