Fe<sub>4</sub>N焼結体の作製に関する一試行

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  • An Effort on Preparing Sintered Bodies of Fe<sub>4</sub>N
  • Fe4N ショウケツタイ ノ サクセイ ニ カンスル イチシコウ

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Sintered bodies of Fe4N were prepared by way of a hot-press, followed by firing in an atmosphere containing NH3 and H2 gases. After the hot-press, Fe4N was not sintered and impurities of an iron oxide and a paramagnetic compound coexisted. The sintered bodies were obtained by firing the hot-pressed bodies in the atmosphere. It was found that, in firing, Fe4N was reduced and sintered above the decomposition temperature (approx. 670°C) and then the sintered bodies were rapidly renitrified in the atmosphere to Fe4N through open pores in cooling. X-ray diffraction and Mössbauer spectra showed that the sintered bodies were Fe4N single phase.

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