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Information × Registration Number 0211U000065, 0110U005608 , R & D reports Title Development of technology of producing nanocomposite anisotropic Sm2(Co,Fe,Zr,Cu)17 based magnets popup.stage_title Head Bulyk Ihor Ivanovych, Доктор технічних наук Registration Date 13-01-2011 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 The hydrogenation, disproportionation, desorption, recombination (HDDR) and ball milling processes were applied to КС25 (Sm2(Co,Fe,Zr,Cu)17) ferromagnetic alloy. Dependence between phase composition, microstructure and treatment conditions have been investigated. Treatment conditions for obtaining by ball milling powders of КС25 alloy in planetary mill in hydrogen atmosphere which can be textured have been found: frequency are 100...400 rpm, treatment time equal 20...60 min, texture parameters are 0.010...0.044. The powder of alloy disproportionated to SmH2 and FeCo in the temperature range from 700...950 °С and under hydrogen pressure 1.5...3,0 MPa. Full recombination of the disproportionated products in a vacuum (~0.02 Pa) occurs at 770...950 °С. After conventional HDDR process crystallites size were 100...300 nm and 70...140 nm after solid HDDR. Product Description popup.authors Бурховецький Валерій Вікторович Гаращенко Валерій Васильович Тростянчин Андрій Миколайович popup.nrat_date 2020-04-02 Close