Skip to main content
SpringerLink
Log in

The Effect of a Pulse Current Supply on the Structure and Magnetic Properties of Highly Dispersed Iron

  • Published:
Powder Metallurgy and Metal Ceramics Aims and scope

Abstract

The paper examines how a pulse current supply affects the formation of highly dispersed iron powder particles. We determine the optimum current pulse frequency (104-103Hz), the ratio of the amplitude of the nucleation current to the amplitude of the crystal growth current (I n/I g = 5:25) and the optimum ratio of the nucleation time to the crystal growth time (τn/τg = 1:10). The effect of the pulsed current manifests itself in decrease in dendricity, i.e., a reduction of the particle anisotropy, and has little impact on the powder dispersity.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

REFERENCES

  1. T. M. Shvets, E. P. Zhelibo, Z. M. Mel'nichenko, and V. P. Vasilenko, Physical Chemistry of Highly Dispersed Ferromagnets [in Russian], Nauk. Dumka, Kiev (1985).

    Google Scholar 

  2. N. A. Kostin, V. S. Kulbanovskii, and A. V. Zabludovskii, Pulse Electrolysis [in Russian], Nauk. Dumka, Kiev (1989).

    Google Scholar 

  3. E. P. Zhelibo, Physicochemical Foundations of the Formation of Highly Dispersed Electrolytic Powders of Metals and Alloys, Author's Abstract of Doctoral Dissertation [in Russian], Kiev (1989).

  4. V. I. Chernenko, K. I. Litovchenko, and I. I. Papanov, Advanced Pulse and AC Electrolysis Modes [in Russian], Nauk. Dumka, Kiev (1989).

    Google Scholar 

  5. Z. M. Mel'nichenko, “Electrodeposition of highly dispersed iron with a pulse current supply,” Ukr. Khim. Zh., 47, No. 12, 1296-1297 (1981).

    Google Scholar 

  6. A. N. Baraboshkin, Electrochemical Crystallization of Metals from Molten Salts [in Russian], Nauka, Moscow (1976).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute of Colloid Chemistry and the Chemistry of Water, National Academy of Sciences of Ukraine, Kiev, blv. Academica Vernadskogo 42, Kiev 142, 03142, Ukraine

    Vasilii A. Bagrii

Authors
  1. Vasilii A. Bagrii
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Bagrii, V.A. The Effect of a Pulse Current Supply on the Structure and Magnetic Properties of Highly Dispersed Iron. Powder Metallurgy and Metal Ceramics 39, 525–527 (2000). https://doi.org/10.1023/A:1011397608954

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1011397608954

Search

Navigation