Qi Zeng, Yiaofu Xiao, Yunshen Deng, Xubo Liu,  and Shenzhi Dong, Nitrogenation Process of Nd(Fe, Mo)12 Compound, J. Univ. Sci. Technol. Beijing, 5(1998), No. 2, pp. 97-99.
Cite this article as:
Qi Zeng, Yiaofu Xiao, Yunshen Deng, Xubo Liu,  and Shenzhi Dong, Nitrogenation Process of Nd(Fe, Mo)12 Compound, J. Univ. Sci. Technol. Beijing, 5(1998), No. 2, pp. 97-99.
Materials

Nitrogenation Process of Nd(Fe, Mo)12 Compound

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  • Received: 23 November 1997
  • The reaction kinetics between nitrogen gas and Nd(Fe, Mo)12 intermetallic compound has been studied. The relationship between the reaction temperature, the reaction time with average mass fraction of N in samples have been measured. The activation energy of first step reaction, Ef,(18.2 kJ/mol), is smaller than Es (64.6 kJ/mol) of the second step during which nitrogen diffusion in the range 400~550℃ can be represented by an activated interstitial diffusion process. Heating above 550℃ leads to disproportion of the compound into NdN and α-Fe and the permanent properties will be damaged greatly.
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