ferrofluids;
nickel ferrite;
field induced assembling;
ultra fine particles;
D O I:
10.1007/BF02708498
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Ultra fine precursors for ferrofluid synthesis, belonging to the series, NixFe1-xFe2O4 (where 'x' varies from '0' to '0.6' in steps of 0.1), were synthesized. Ferrofluids based on these fine particles were prepared with oleic acid as surfactant and kerosene as carrier. Ferrofluidic thin films were made on glass substrates and magnetic field induced laser transmission was studied. The pattern exhibited by the films under the influence of a magnetic field was observed with the help of a CCD camera. The analysis of results confirms the chain formation of particles in the presence of an applied magnetic field and their saturation at higher applied fields.
机构:
CSIR Natl Phys Lab, Dr KS Krishnan Marg, New Delhi 110012, India
Acad Sci & Innovat Res AcSIR, Ghaziabad, IndiaCSIR Natl Phys Lab, Dr KS Krishnan Marg, New Delhi 110012, India
Kuldeep
Khan, Mohd. Aamir
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机构:
CSIR Natl Phys Lab, Dr KS Krishnan Marg, New Delhi 110012, India
Acad Sci & Innovat Res AcSIR, Ghaziabad, IndiaCSIR Natl Phys Lab, Dr KS Krishnan Marg, New Delhi 110012, India
Khan, Mohd. Aamir
Chatterjee, Kaustuv
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机构:
Acad Sci & Innovat Res AcSIR, Ghaziabad, India
CSIR Cent Glass & Ceram Res Inst, 196 Raja SC,Mullick Rd, Kolkata 700032, IndiaCSIR Natl Phys Lab, Dr KS Krishnan Marg, New Delhi 110012, India
Chatterjee, Kaustuv
Pal, Prabir
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CSIR Cent Glass & Ceram Res Inst, 196 Raja SC,Mullick Rd, Kolkata 700032, IndiaCSIR Natl Phys Lab, Dr KS Krishnan Marg, New Delhi 110012, India
Pal, Prabir
Basheed, G. A.
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机构:
CSIR Natl Phys Lab, Dr KS Krishnan Marg, New Delhi 110012, India
Acad Sci & Innovat Res AcSIR, Ghaziabad, IndiaCSIR Natl Phys Lab, Dr KS Krishnan Marg, New Delhi 110012, India