R-T-B based sintered magnet

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United States of America Patent

PATENT NO 10186357
APP PUB NO 20160307675A1
SERIAL NO

15130375

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Abstract

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An R-T-B based sintered magnet including a main phase composed of an R2T14B (wherein, R is at least one selected from the group consisting of Y, Ce, La, Pr, Nd, Sm, Eu and Gd; and T is one or more transition metal elements with Fe as necessity) structure, wherein the R-T-B based sintered magnet has a grain boundary phase containing Ce, Fe and Co, and the cross-section area ratio of the grain boundary phase containing Ce, Fe and Co in a unit cross-section area is 1.0% or more and 5.0% or less.

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Patent Owner(s)

  • 501 TDK CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tada, Atsushi Tokyo, JP 34 202

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