The M ssbauer investigation in iron nitride/expanded graphite

LIU Wei1 YANG Jian1 HUANG Yu’an2 ZHAI Ya3 ZHANG Ruili1 TANG Tao1 HUANG Runsheng1 1

doi:10.11889/j.0253-3219.2013.hjs.36.010501

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The M ssbauer investigation in iron nitride/expanded graphite

更新时间：2021-06-03

- The M ssbauer investigation in iron nitride/expanded graphite
- NUCLEAR TECHNIQUES Vol. 36, Issue 1, Article number: 010501(2013)
- 作者机构：
  
  1. 南京大学物理学院
  2. 南京工程学院材料工程学院
  3. 东南大学物理系
- 作者简介：
- 基金信息：
- DOI：10.11889/j.0253-3219.2013.hjs.36.010501
  CLC： O481.4
- Published：2013
- 稿件说明：
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[1]刘伟,杨健,黄玉安,翟亚,张瑞利,唐涛,黄润生.氮化铁/膨胀石墨的穆斯堡尔谱研究[J].核技术,2013,36(01):73-77.

LIU Wei1 YANG Jian1 HUANG Yu’an2 ZHAI Ya3 ZHANG Ruili1 TANG Tao1 HUANG Runsheng1 1. The M ssbauer investigation in iron nitride/expanded graphite[J]. Nuclear techniques, 2013, 36(1): 010501
[1]刘伟,杨健,黄玉安,翟亚,张瑞利,唐涛,黄润生.氮化铁/膨胀石墨的穆斯堡尔谱研究[J].核技术,2013,36(01):73-77. DOI： 10.11889/j.0253-3219.2013.hjs.36.010501.

LIU Wei1 YANG Jian1 HUANG Yu’an2 ZHAI Ya3 ZHANG Ruili1 TANG Tao1 HUANG Runsheng1 1. The M ssbauer investigation in iron nitride/expanded graphite[J]. Nuclear techniques, 2013, 36(1): 010501 DOI： 10.11889/j.0253-3219.2013.hjs.36.010501.

摘要

用气氛还原氮化法成功将氮化铁纳米颗粒植入膨胀石墨

制备出具有优良磁性和射频屏蔽效能的材料。XRD测量表明不同温度氮化反应

制备的材料中含铁物相有变化。用57Fe的穆斯堡尔谱

详细分析了不同反应温度下反应产物的相组分。结果表明

随着温度的上升

在400°C之前

Fe颗粒逐渐被氮化直至完全

400°C以后氮化铁中的γ-Fe4N逐渐向ε-FexN（2<x<3）转化。

Abstract

We successfully prepared the composites possessed high magnetic properties and shielding effectiveness（SE） in RF band with the methods of loading iron nitride nanoparticles on expanded graphite（EG） by the gaseous reduction and nitridation.XRD measurement shows that the ferric phases changed in different nitridation temperature.The phase components of nanoparticles were analyzed in detail by the measurement of 57Fe M ssbauer spectra.The result shows that as the temperature increased

the Fe particles were gradually nitride until completely before 400°C and the γ-Fe4N was gradually converted to ε-FexN（2<x<3） in iron nitride after 400°C

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