Effect of pressure on the structure of Fe-N alloys formed by solid-state reaction

B. Yao; L. Liu; S. E. Liu; X. Hu; W. H. Su

doi:10.1557/JMR.2001.0355

Effect of pressure on the structure of Fe-N alloys formed by solid-state reaction

B. Yao^*, L. Liu, S. E. Liu, X. Hu, W. H. Su

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

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. ∈-Fe₃N_x 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 ∈-Fe₃N_x under high pressure is discussed.

Original language	English
Pages (from-to)	2583-2590
Number of pages	8
Journal	Journal of Materials Research
Volume	16
Issue number	9
DOIs	https://doi.org/10.1557/JMR.2001.0355
Publication status	Published - Sept 2001
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1557/JMR.2001.0355

Cite this

@article{0081da214fc44dd0a3edda1dedc947c1,

title = "Effect of pressure on the structure of Fe-N alloys formed by solid-state reaction",

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 {\AA}, and another is of orthorhombic structure with lattice constants of a = 8.443, b = 4.749, and c = 3.993 {\AA}. ∈-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.",

author = "B. Yao and L. Liu and Liu, {S. E.} and X. Hu and Su, {W. H.}",

year = "2001",

month = sep,

doi = "10.1557/JMR.2001.0355",

language = "English",

volume = "16",

pages = "2583--2590",

journal = "Journal of Materials Research",

issn = "0884-2914",

publisher = "Materials Research Society",

number = "9",

}

TY - JOUR

T1 - Effect of pressure on the structure of Fe-N alloys formed by solid-state reaction

AU - Yao, B.

AU - Liu, L.

AU - Liu, S. E.

AU - Hu, X.

AU - Su, W. H.

PY - 2001/9

Y1 - 2001/9

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0011899207&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0011899207&partnerID=8YFLogxK

U2 - 10.1557/JMR.2001.0355

DO - 10.1557/JMR.2001.0355

M3 - Article

AN - SCOPUS:0011899207

SN - 0884-2914

VL - 16

SP - 2583

EP - 2590

JO - Journal of Materials Research

JF - Journal of Materials Research

IS - 9

ER -

Effect of pressure on the structure of Fe-N alloys formed by solid-state reaction

Abstract

ASJC Scopus Subject Areas

Access to Document

Other files and links

Fingerprint

Cite this