Author:
Kolodkin D,Popov A,Protasov A,Gaviko V,Kavita S,Prabhu D B,Gopalan R
Abstract
Abstract
The effect of solid solution treatment (SST) of Sm-Fe alloys and conditions of the nitrogenation on the structure and magnetic properties of the Sm2+αFe17N
x
(α = 0 ÷ 0.6) powders has been investigated. It is observed that the nitrided powders with the best hysteresis properties can be prepared from the Sm2.4Fe17 alloy after the SST at a temperature of 1050°C (5 h) and heat treatment at 525°C in a H2: N2 = 1: 1 gas mixture with a pressure of 2.5 atm. The additional ball milling of the powder enhances the coercivity to 6.4 kOe.
Subject
General Physics and Astronomy