同步还原氮化法制备γ′-Fe_4N化合物

Preparing γ′-Fe_4N compound by a combined method of reduction and nitriding

利用Fe3O4 作为前驱体,通过同步还原氮化的方法制备了单相γ′Fe4N化合物.研究了在氮化过程中氨氢比和氮化温度对物相生成的影响,以及氮化温度对颗粒粒度的影响;并对γ′Fe4N结构和磁性进行了系统的研究.

Singlephase γ′Fe_(4)N nanoparticles have been synthesizedby a combined method of reduction and nitriding using Fe_(3)O_(4)nanoparticles as precursor. The effects of different gas and quenching temperatures on the phase and grain size of reaction products have been studied. Their magnetic properties have been investigated systematically.