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|Title:||Effect of pressure on the structure of Fe-N alloys formed by solid-state reaction|
|Authors:||Yao, B. |
|Source:||Yao, B.,Liu, L.,Liu, S.E.,Hu, X.,Su, W.H. (2001-09). Effect of pressure on the structure of Fe-N alloys formed by solid-state reaction. Journal of Materials Research 16 (9) : 2583-2590. ScholarBank@NUS Repository.|
|Abstract:||Fe-N alloys with crystalline structures different from those obtained at atmospheric pressure were produced by solid-state reaction between Fe and amorphous boron nitride under high pressure. Two new paramagnetic Fe-N phases were obtained at temperatures above 800 K under pressures between 2.0 and 4.0 GPa. One is of cubic structure with lattice constant of 6.114 Å, and another is of orthorhombic structure with lattice constants of a = 8.443, b = 4.749, and c = 3.993 Å. ∈-Fe3Nx with N contents of 18.1 to 21.4 at.%, which could not be obtained at atmospheric pressure, was produced at pressures of 3.0 to 4.0 GPa and temperatures of 690 to 800 K. The mechanism of formation of ∈-Fe3Nx under high pressure is discussed.|
|Source Title:||Journal of Materials Research|
|Appears in Collections:||Staff Publications|
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