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Title: | Effect of pressure on the structure of Fe-N alloys formed by solid-state reaction | Authors: | Yao, B. Liu, L. Liu, S.E. Hu, X. Su, W.H. |
Issue Date: | Sep-2001 | Citation: | 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 | URI: | http://scholarbank.nus.edu.sg/handle/10635/107015 | ISSN: | 08842914 |
Appears in Collections: | Staff Publications |
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