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Chemicals, plastics and rubber industries

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Reverse micelle synthesis and characterization of superparamagnetic MnFe2O4 spinel ferrite nanocrystallites

Article Abstract:

A new reverse micelle method of making high quality MnFe2O4 nanoparticles with a controllable size in the range 4-15 nm is described. The superparamagnetic properties of the material is analysed using SQUID magnetometry and neutron diffraction.

Author: Liu, Chao, Zou, Bingsuo, Rondinone, Adam J., Zhang, Z. John
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
Ferromagnetism, Chemistry, Physical and theoretical, Physical chemistry

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A chemical approach for predicting the size of magnetic spinel ferrite nanoparticles from the synthesis conditions

Article Abstract:

Magnetic CoFe2O4 spinel ferrite nanoparticles are synthesized by a microemulsion method using sodium dodecyl sulfate as the surfactant to form micelles. A statistical method of factorial design is used to establish a mathematical model from a series of synthesis experiments.

Author: Rondinone, Adam J., Zhang, Z. John, Samia, Anna C.S.
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
Science & research, Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Cobalt, Ferric oxide, Magnetic properties, Chemical synthesis

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Superparamagnetic relaxation and magnetic anisotropy energy distribution in CoFe2O4 spinel ferrite nanocrystallites

Article Abstract:

A study investigated the mechanism of superparamagnetic relaxation in CoFe2O4 spinel ferrite nanoparticles with a mean size of 12 nm that were prepared with a micromulsion technique. The magnetization measurement exhibited a blocking temperature of roughly 320 K. A divergence between the zero-field-cooled and field-cooled magnetization appeared below the blocking temperature. Other findings along with the experimental methods and conclusions are discussed.

Author: Rondinone, Adam J., Zhang, Z. John, Samia, Anna C.S.
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
Analysis, Particles, Particulate matter, Magnetic materials, Spinel group

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