Structural characterization and stress-relaxation behavior of superlattice Cu5Zr

Kyou Hyun Kim; Jae Pyoung Ahn; Young Min Kim; Byeong Joo Lee; Jae Chul Lee

doi:10.1016/j.scriptamat.2007.09.014

Structural characterization and stress-relaxation behavior of superlattice Cu₅Zr

Kyou Hyun Kim, Jae Pyoung Ahn, Young Min Kim, Byeong Joo Lee, Jae Chul Lee

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

5 Citations (Scopus)

Abstract

A self-organized superlattice containing modulated layers in Cu₅Zr was manufactured by casting a Cu-Zr system. Substitutional Zr atoms caused compressive stress in the superlattice so that periodic stress fields were formed with a long-range order along the 〈1 1 0〉 directions on {1 1 1} for stress relaxation. On the other hand, it was demonstrated theoretically by atomistic simulations that a superlattice could form easily due to the large negative enthalpy of formation in the structure (-12.890 kJ/mol of atoms).

Original language	English
Pages (from-to)	5-8
Number of pages	4
Journal	Scripta Materialia
Volume	58
Issue number	1
DOIs	https://doi.org/10.1016/j.scriptamat.2007.09.014
Publication status	Published - 2008 Jan

Keywords

Casting
High-resolution electron microscopy (HREM)
Monte Carlo techniques
Stress-relaxation
Superlattice

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Access to Document

10.1016/j.scriptamat.2007.09.014

Cite this

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title = "Structural characterization and stress-relaxation behavior of superlattice Cu5Zr",

abstract = "A self-organized superlattice containing modulated layers in Cu5Zr was manufactured by casting a Cu-Zr system. Substitutional Zr atoms caused compressive stress in the superlattice so that periodic stress fields were formed with a long-range order along the 〈1 1 0〉 directions on {1 1 1} for stress relaxation. On the other hand, it was demonstrated theoretically by atomistic simulations that a superlattice could form easily due to the large negative enthalpy of formation in the structure (-12.890 kJ/mol of atoms).",

keywords = "Casting, High-resolution electron microscopy (HREM), Monte Carlo techniques, Stress-relaxation, Superlattice",

author = "Kim, {Kyou Hyun} and Ahn, {Jae Pyoung} and Kim, {Young Min} and Lee, {Byeong Joo} and Lee, {Jae Chul}",

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T1 - Structural characterization and stress-relaxation behavior of superlattice Cu5Zr

AU - Kim, Kyou Hyun

AU - Ahn, Jae Pyoung

AU - Kim, Young Min

AU - Lee, Byeong Joo

AU - Lee, Jae Chul

PY - 2008/1

Y1 - 2008/1

N2 - A self-organized superlattice containing modulated layers in Cu5Zr was manufactured by casting a Cu-Zr system. Substitutional Zr atoms caused compressive stress in the superlattice so that periodic stress fields were formed with a long-range order along the 〈1 1 0〉 directions on {1 1 1} for stress relaxation. On the other hand, it was demonstrated theoretically by atomistic simulations that a superlattice could form easily due to the large negative enthalpy of formation in the structure (-12.890 kJ/mol of atoms).

AB - A self-organized superlattice containing modulated layers in Cu5Zr was manufactured by casting a Cu-Zr system. Substitutional Zr atoms caused compressive stress in the superlattice so that periodic stress fields were formed with a long-range order along the 〈1 1 0〉 directions on {1 1 1} for stress relaxation. On the other hand, it was demonstrated theoretically by atomistic simulations that a superlattice could form easily due to the large negative enthalpy of formation in the structure (-12.890 kJ/mol of atoms).

KW - Casting

KW - High-resolution electron microscopy (HREM)

KW - Monte Carlo techniques

KW - Stress-relaxation

KW - Superlattice

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