摘要:
A process for efficiently producing at low cost a raw alloy for nanocomposite magnets which is mainly amorphous. The process comprises preparing a molten alloy represented by Fe¿100-x-y-z?RxQyMz (wherein R is at least one of praseodymium, neodymium, dysprosium, and terbium; Q is at least one of boron and carbon; M is at least one of cobalt, aluminum, silicon, titanium, vanadium, chromium, manganese, nickel, copper, gallium, zirconium, niobium, molybdenum, silver, platinum, gold, and lead; 1 ≤ x
摘要:
A compound for a rare earth element based bonded magnet containing a rare earth element powder and a binding agent, characterized in that the rare earth element powder comprises, in an amount of 2 mass % or more, Ti-containing nanocomposite magnet powdery particles which have a composition represented by the empirical formula: (Fe1-mTm)100-x-y-z QxR yMz wherein T is at least one element selected from the group consisting of Co and Ni, Q is at least one element being selected from the group consisting of B and C and including B, R is at least one rare earth element not including La nor Ce, M is at least one metal element being selected from the group consisting of Ti, Zr and Hf and including Ti, and x, y, z and m respectively satisfy 10
摘要:
An iron base rare earth alloy powder which comprises a first iron base rare earth alloy powder having an average particle diameter of 10 νm to 70 νm and having an aspect ratio of a particle thereof of 0.4 to 1.0 and a second iron base rare earth alloy powder having an average particle diameter of 70 νm to 300 νm and having an aspect ratio of a particle thereof of less than 0.3, wherein the above first iron base rare earth alloy powder and the above second iron base rare earth alloy powder is mixed in a mixing ratio within the range of 1.49 to 4.1. The above powder exhibits improved fluidity and can be used for providing a magnet compound having high fluidity.
摘要:
A method for producing an iron base rare earth alloy nanocomposite magnet powder, which comprises quenching by the atomizing method a molten alloy having the empirical formula represented by (Fe1-mTm)100-x-y-zQxRyTizMn , wherein T represents one or more elements selected from the group consisting of Co and Ni, Q represents at least one element selected from the group consisting of B and C, R represents at least one element selected from the group consisting of the rare earth elements and yttrium, M represents at least one element selected from the group consisting of Nb, Zr, Mo, Ta and Hf, and numbers x, y, z, m and n concerning a composition proportion satisfy 10
摘要:
A nanocomposite magnet has a composition represented by (Fe1-mTm) 100-x-y-z-n QxRyTizMn, where T is at least one of Co and Ni, Q is at least one of B and C, R is at least one rare earth element that always includes at least one of Nd and Pr and optionally includes Dy and/or Tb, and M is at least one element selected from the group consisting of Al, Si, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb. The mole fractions x, y, z, m and n satisfy 10 at%