Phase Monitoring during Nd(Fe,M)_(12) (M=Mo or Ti) Compound Nitrogenation by Chemical Reaction with Sodium Azide (NaN_3)

机译：Nd（Fe，M）_（12）（M = Mo或Ti）化合物与叠氮化钠（NaN_3）的化学氮化过程中的相监测

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NdFe_(10.75)Mo_(1.25) and NdFe_(11)Ti alloys have been successfully nitrogenated by heating a mixture of powdered alloys with sodium azide (NaN_3) at temperatures between 330 and 450℃. Among the characterization techniques used to evaluate the final product, Moessbauer spectroscopy was invaluable for quantitative determination of 1-12 and α-Fe phases, after and before nitrogenation. The α-Fe phase increased indicated that a competition between the interstitially modified compound formation (alloy + N) and alloy dissociation occurred. This effect was more pronounced in Ti alloys nitrogenated at 450℃.

机译：NdFe_（10.75）Mo_（1.25）和NdFe_（11）Ti合金已通过在330至450℃之间的温度下加热合金粉末与叠氮化钠（NaN_3）的混合物而成功地进行了氮化。在用于评估最终产品的表征技术中，Moessbauer光谱对于氮化之后和之前进行1-12和α-Fe相的定量测定非常有价值。 α-Fe相的增加表明，在中间改性的化合物形成（合金+ N）与合金解离之间发生了竞争。在450℃氮化的Ti合金中这种效应更为明显。

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来源
《3rd International Latin-American Conference on Powder Technology, Nov 26-28, 2001, Santa Catarina, Brazil》|2001年|p.107-112|共6页
会议地点 Santa Catarina(BR)
作者
Eneida da G. Guilherme; Hercilio R. Rechenberg; Jose A. H. Coaquira;
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作者单位

Materials Engineering Department, IPEN/CNEN-SP, Universidade de Sao Paulo, CP 11049, CEP 05522-970, Sao Paulo SP, Brazil;

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会议组织
原文格式 PDF
正文语种 eng
中图分类一般工业技术;
关键词
reduction-diffusion calciothermic process; hard magnetic materials; intermetallic compounds; nitrogenation;

机译：还原扩散钙热过程；硬磁性材料；金属间化合物氮化;

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Phase Monitoring during Nd(Fe,M)_(12) (M=Mo or Ti) Compound Nitrogenation by Chemical Reaction with Sodium Azide (NaN_3)

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