METHOD OF PREPARING MAGNETIC POWDER AND MAGNETIC POWDER
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United States of America
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Issued Date -
Oct 31, 2024
app pub date -
Oct 3, 2023
filing date -
Oct 3, 2023
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Abstract
A method of preparing a magnet powder, and a magnet powder, are disclosed. The method includes: preparing a neodymium praseodymium (Nd, Pr) mixed oxide containing Nd and Pr; preparing iron (Fe) oxide; preparing boron (B) oxide; mixing the prepared (Nd, Pr) mixed oxide, iron oxide, and boron oxide to prepare a first mixture; mixing the first mixture with calcium (Ca) to prepare a second mixture; inducing diffusion while shaping and pressing the second mixture; reducing the shaped and pressed second mixture to prepare a magnetic substance containing Nd, Fe, and B; powdering the reduced magnetic substance; and removing reduction by-products from the powdered magnetic substance.
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