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首页> 外文期刊>Materials Science and Engineering >Mechanical properties of (Nd,Dy)-Fe-B magnets sintered via cyclic sintering
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Mechanical properties of (Nd,Dy)-Fe-B magnets sintered via cyclic sintering

机译：循环烧结法烧结（Nd，Dy）-Fe-B磁体的机械性能

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摘要

Nd_(13)Dy_2Fe_(79)B_6 (at%) magnets were fabricated via cyclic sintering. The cyclic sintering of Nd-Fe-B powder yielded samples with densities greater than 98%. The bending strength and fracture toughness of the cyclic sintered specimens were 520 MPa and 6.16MPa m~(1/2), respectively, and the coercivity of the samples increased from 1666.8 kA/m to 1828.5 kA/m. Nd-rich phases may have effectively penetrated into the boundaries between neighboring Nd_2Fe_(14)B grains during the cyclic sintering process.The microstructures and shapes of the Nd-rich phases were effectively controlled, resulting in improved mechanical and magnetic properties.
机译：通过循环烧结制备了Nd_（13）Dy_2Fe_（79）B_6（at％）磁体。 Nd-Fe-B粉末的循环烧结产生密度大于98％的样品。循环烧结试样的弯曲强度和断裂韧性分别为520 MPa和6.16MPa m〜（1/2），矫顽力从1666.8 kA / m增加到1828.5 kA / m。在循环烧结过程中，富Nd相可能已经有效地渗透到相邻Nd_2Fe_（14）B晶粒之间的边界中，有效控制了富Nd相的微观结构和形状，从而改善了机械性能和磁性能。

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