SINTERED RARE-EARTH MAGNET AND METHOD OF MANUFACTURE
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United States of America Patent
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Nov 2, 2023
app pub date -
Mar 28, 2023
filing date -
Apr 28, 2022
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Abstract
In a sintered rare-earth magnet containing R2T14B main-phase grains (R being one or more element selected from rare-earth elements and T being one or more element selected from iron group elements), intergranular grain boundaries that from between two mutually adjoining main-phase grains and grain boundary triple junctions surrounded by three or more main-phase grains, the main-phase grains, the intergranular grain boundaries and the grain boundary triple junctions all include TiB2 crystals. The sintered rare-earth magnet is a to high-performance magnet of high coercivity and good squareness.
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