Open AccessReduced Remanence to Coercivity Increase Ratio of Pr11,76xDyxFe82B6 (x = 0; 1; 2; 3) Permanent Magnets
Author(s) -
Nanang Sudrajat,
Wisnu Ari Adi,
Azwar Manaf
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/553/1/012024
Subject(s) - coercivity , remanence , dysprosium , materials science , magnet , analytical chemistry (journal) , saturation (graph theory) , mass fraction , metallurgy , nuclear magnetic resonance , condensed matter physics , composite material , magnetization , chemistry , magnetic field , inorganic chemistry , electrical engineering , physics , engineering , quantum mechanics , mathematics , chromatography , combinatorics
Dysprosium substituted Pr-Fe-B permanent magnet samples with Pr 11 , 76-x Dy x Fe 82 B 6 (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, Fe 3 B 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 Pr 2 Fe 14 B 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.