Direct Nitriding of Iron Powder by means of Chemical Oven Technique

IF 0.6 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2025-06-23 DOI:10.3103/S1061386225700037

T. V. Barinova, E. I. Volchenko, G. R. Nigmatullina, M. I. Alymov

引用次数: 0

Abstract

Direct nitriding of spherical microparticles of carbonyl iron powder was carried out by means of chemical oven technique. Experimental selection of highly exothermic mixtures (“chemical ovens”) and nitrogen-containing additives was realized. It was shown that the nitriding products contain Fe₃N_x where x ranges from 0.93 to 1.15 as a basis and are represented by spherical core–shell particles where the core is iron and the shell consisting of sub-microcrystals includes Fe, Fe₃C, and Fe_xN (x = 3 and 4). According to XRD-Rietveld method calculations, the maximum yield of Fe_xN was 66 wt %.

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化学炉法直接氮化铁粉

采用化学炉技术对羰基铁粉球形微粒进行了直接氮化处理。实现了高放热混合物（“化学烤箱”）和含氮添加剂的实验选择。结果表明，氮化产物中含有Fe3Nx， x在0.93 ~ 1.15范围内，以球形核壳粒子表示，核为铁，壳由亚微晶组成，包括Fe、Fe3C和fen （x = 3和4）。根据XRD-Rietveld法计算，FexN的最大收率为66 wt %。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Self-Propagating High-Temperature Synthesis MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

33.30%

发文量

期刊介绍： International Journal of Self-Propagating High-Temperature Synthesis is an international journal covering a wide range of topics concerned with self-propagating high-temperature synthesis (SHS), the process for the production of advanced materials based on solid-state combustion utilizing internally generated chemical energy. Subjects range from the fundamentals of SHS processes, chemistry and technology of SHS products and advanced materials to problems concerned with related fields, such as the kinetics and thermodynamics of high-temperature chemical reactions, combustion theory, macroscopic kinetics of nonisothermic processes, etc. The journal is intended to provide a wide-ranging exchange of research results and a better understanding of developmental and innovative trends in SHS science and applications.