Reduced Remanence to Coercivity Increase Ratio of Pr11,76xDyxFe82B6 (x = 0; 1; 2; 3) Permanent Magnets

Nanang Sudrajat, A. Wisnu, Azwar Manaf

Research output: Contribution to journalConference articlepeer-review

Abstract

Dysprosium substituted Pr-Fe-B permanent magnet samples with Pr11, 76-xDyxFe82B6 (x = 0, 1, 2 and 3) composition were made up by compacting the crystalline fine powders prepared through mechanical milling and successive high power ultrasonic irradiation. The (Pr,Dy)-Fe-B alloys with designated compositions were obtained from arc melted the charges that consisted of respectively Dy-Fe, Fe3B alloys and pure Fe and Pr metals. Results of the xrd analysis are permanent magnetic samples confirmed that the mass of the compound fraction formed is 90.07%. A change in lattice parameter of Pr2Fe14B phase occurred when Pr was partially substituted by Dy. Furthermore, the effect of dy partial substitution on magnetic properties can increase the coercivity value, but with a decrease in saturation magnetic. Dy = 3 substitution produces coercivity and remanence values of 160 kA/m and 0.275 T respectively in the permanent magnet category.

Original languageEnglish
Article number012024
JournalIOP Conference Series: Materials Science and Engineering
Volume553
Issue number1
DOIs
Publication statusPublished - 12 Nov 2019
Event19th International Union of Materials Research Societies - International Conference in Asia, IUMRS-ICA 2018 - Bali, Indonesia
Duration: 30 Oct 20182 Nov 2018

Keywords

  • Coercivity
  • Magnetic properties
  • Ndfeb
  • Permanent magnets
  • Sintered magnets

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