High-pressure sintering characteristics of Sm2Fe17N<i>x</i> powder

K. Machida, Yoshitaka Nakatani, Gin‐ya Adachi, A. Onodera

Applied Physics Letters · 1993 · 27 citations · 8 references

Concepts

Abstract

Sintering characteristics of Sm2Fe17Nx were studied under high-pressure conditions (pressure=3 GPa and temperatures=300, 550, and 800 °C) without any binding material. High-pressure treatments at 3 GPa and 550 °C succeeded in preparing the sintered materials without any decomposition, which possessed density values close to the theoretical one and good mechanical strength property, although the temperature of 300 °C was little enough for sintering of the Sm2Fe17Nx powder and the sample prepared at 800 °C provided a different x-ray diffraction (XRD) pattern from that of Sm2Fe17Nx. The result that the remanence values of Sm2Fe17Nx were almost similar to each other (6.5–7.0 kG) before and after the sintering at 3 GPa and 550 °C indicated that the high-pressure treatments never involved any serious undesirable effect on the magnetization property of resulting sintered materials.

References

8