Non-uniaxial permanent magnet material
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United States of America Patent
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Apr 4, 1995
Grant Date -
N/A
app pub date -
Oct 19, 1992
filing date -
Oct 19, 1992
priority date (Note) -
Expired
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Abstract
A permanent magnet material having the formula, in atomic %: TM.sub.(84.3.-w-z) RE.sub.(3.0+w) B.sub.(12.7+z), wherein -3.3.ltoreq.z<3.3 and -2.0.ltoreq.w<2.0; or TM.sub.(89.8-x-y) RE.sub.(3.5+y) B.sub.(6.7+x), wherein -2.5.ltoreq.y<2.5 and -2.7.ltoreq.x.ltoreq.2.7; or TM.sub.(96.5-q-r) RE.sub.(1+q) B.sub.(2.5+r), wherein -1.5.ltoreq.r.ltoreq.1.5 and 0.ltoreq.q<6.5-r; and wherein TM is a transition metal, RE is a rare earth metal, and B is boron or a combination of boron and carbon. The permanent magnet materials include at least weight percent non-uniaxial material and possess a coercivity of at least 1,000 Oersteds.
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