Stable nanocrystalline NbMoTaW high entropy alloy thin films with excellent mechanical and electrical properties

Xiaobin Feng; Jinyu Zhang; Ziren Xia; Wei Fu; Kai Wu; Gang Liu; Jun Sun

doi:10.1016/j.matlet.2017.08.129

Stable nanocrystalline NbMoTaW high entropy alloy thin films with excellent mechanical and electrical properties

Xiaobin Feng
, Jinyu Zhang
, Ziren Xia
, Wei Fu
, Kai Wu
, Gang Liu
, Jun Sun

School of Materials Science and Engineering

Xi'an Jiaotong University

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

120 Scopus citations

Abstract

In this work, we systematically investigated the hardness, electrical resistance and thermal stability of nanocrystalline NbMoTaW high entropy alloy films with thickness varying from about 100 to 2000 nm. The nanocrystalline high entropy alloy film exhibited the peak hardness (∼16.0 GPa), strong size-independent electrical resistance (∼170 μΩ·cm) as well as stabilized single phase body-centered cubic (BCC) structure even after exposed to vacuum annealing at 800 °C for 2 h. In the meantime, we provide reasonable insights into understanding behaviors above. With superior mechanical and electrical properties as well as good thermal stability, this kind of refractory nanocrystalline HEAFs will find extensive potential applications.

Original language	English
Pages (from-to)	84-87
Number of pages	4
Journal	Materials Letters
Volume	210
DOIs	https://doi.org/10.1016/j.matlet.2017.08.129
State	Published - 1 Jan 2018

Keywords

Electrical properties
Hardness
High entropy alloys
Nanocrystalline
Thermal stability
Thin films

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10.1016/j.matlet.2017.08.129

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title = "Stable nanocrystalline NbMoTaW high entropy alloy thin films with excellent mechanical and electrical properties",

abstract = "In this work, we systematically investigated the hardness, electrical resistance and thermal stability of nanocrystalline NbMoTaW high entropy alloy films with thickness varying from about 100 to 2000 nm. The nanocrystalline high entropy alloy film exhibited the peak hardness (∼16.0 GPa), strong size-independent electrical resistance (∼170 μΩ·cm) as well as stabilized single phase body-centered cubic (BCC) structure even after exposed to vacuum annealing at 800 °C for 2 h. In the meantime, we provide reasonable insights into understanding behaviors above. With superior mechanical and electrical properties as well as good thermal stability, this kind of refractory nanocrystalline HEAFs will find extensive potential applications.",

keywords = "Electrical properties, Hardness, High entropy alloys, Nanocrystalline, Thermal stability, Thin films",

author = "Xiaobin Feng and Jinyu Zhang and Ziren Xia and Wei Fu and Kai Wu and Gang Liu and Jun Sun",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

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doi = "10.1016/j.matlet.2017.08.129",

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TY - JOUR

T1 - Stable nanocrystalline NbMoTaW high entropy alloy thin films with excellent mechanical and electrical properties

AU - Feng, Xiaobin

AU - Zhang, Jinyu

AU - Xia, Ziren

AU - Fu, Wei

AU - Wu, Kai

AU - Liu, Gang

AU - Sun, Jun

PY - 2018/1/1

Y1 - 2018/1/1

N2 - In this work, we systematically investigated the hardness, electrical resistance and thermal stability of nanocrystalline NbMoTaW high entropy alloy films with thickness varying from about 100 to 2000 nm. The nanocrystalline high entropy alloy film exhibited the peak hardness (∼16.0 GPa), strong size-independent electrical resistance (∼170 μΩ·cm) as well as stabilized single phase body-centered cubic (BCC) structure even after exposed to vacuum annealing at 800 °C for 2 h. In the meantime, we provide reasonable insights into understanding behaviors above. With superior mechanical and electrical properties as well as good thermal stability, this kind of refractory nanocrystalline HEAFs will find extensive potential applications.

AB - In this work, we systematically investigated the hardness, electrical resistance and thermal stability of nanocrystalline NbMoTaW high entropy alloy films with thickness varying from about 100 to 2000 nm. The nanocrystalline high entropy alloy film exhibited the peak hardness (∼16.0 GPa), strong size-independent electrical resistance (∼170 μΩ·cm) as well as stabilized single phase body-centered cubic (BCC) structure even after exposed to vacuum annealing at 800 °C for 2 h. In the meantime, we provide reasonable insights into understanding behaviors above. With superior mechanical and electrical properties as well as good thermal stability, this kind of refractory nanocrystalline HEAFs will find extensive potential applications.

KW - Electrical properties

KW - Hardness

KW - High entropy alloys

KW - Nanocrystalline

KW - Thermal stability

KW - Thin films

UR - https://www.scopus.com/pages/publications/85028732815

U2 - 10.1016/j.matlet.2017.08.129

DO - 10.1016/j.matlet.2017.08.129

M3 - 文章

AN - SCOPUS:85028732815

SN - 0167-577X

VL - 210

SP - 84

EP - 87

JO - Materials Letters

JF - Materials Letters

ER -

Stable nanocrystalline NbMoTaW high entropy alloy thin films with excellent mechanical and electrical properties

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Keywords

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