Enhancement of thermal stability by microstructural refinement in nanocomposite materials

Jing Guo; Zongjian Liu; Sanwu Wang; Yaogen Shen

doi:10.1016/j.scriptamat.2014.05.015

Enhancement of thermal stability by microstructural refinement in nanocomposite materials

Jing Guo, Zongjian Liu, Sanwu Wang, Yaogen Shen

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

The enhancement of thermal stability in nanocrystalline-amorphous (NC-a) materials was investigated by a modified Monte Carlo Potts method. The thermal stability, including the grain size stability and amorphous distribution stability, was found to be controlled by the amorphous fraction f and the energy ratio (J_gb/J_int) of the NC-NC grain boundary energy to the NC-a interfacial energy. The best thermal stability for temperatures up to 1550 K was observed with f = 0.279 and J_gb/J_int = 12, where finer grains are surrounded by thin and coherent NC-a boundaries.

Original language	English
Pages (from-to)	33-36
Journal	Scripta Materialia
Volume	87
DOIs	https://doi.org/10.1016/j.scriptamat.2014.05.015
Publication status	Published - 15 Sept 2014

Research Keywords

Grain growth
Microstructure
Monte Carlo simulation
Nanocomposite materials
Thermal stability

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title = "Enhancement of thermal stability by microstructural refinement in nanocomposite materials",

abstract = "The enhancement of thermal stability in nanocrystalline-amorphous (NC-a) materials was investigated by a modified Monte Carlo Potts method. The thermal stability, including the grain size stability and amorphous distribution stability, was found to be controlled by the amorphous fraction f and the energy ratio (Jgb/Jint) of the NC-NC grain boundary energy to the NC-a interfacial energy. The best thermal stability for temperatures up to 1550 K was observed with f = 0.279 and Jgb/Jint = 12, where finer grains are surrounded by thin and coherent NC-a boundaries.",

keywords = "Grain growth, Microstructure, Monte Carlo simulation, Nanocomposite materials, Thermal stability",

author = "Jing Guo and Zongjian Liu and Sanwu Wang and Yaogen Shen",

year = "2014",

month = sep,

day = "15",

doi = "10.1016/j.scriptamat.2014.05.015",

language = "English",

volume = "87",

pages = "33--36",

journal = "Scripta Materialia",

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TY - JOUR

T1 - Enhancement of thermal stability by microstructural refinement in nanocomposite materials

AU - Guo, Jing

AU - Liu, Zongjian

AU - Wang, Sanwu

AU - Shen, Yaogen

PY - 2014/9/15

Y1 - 2014/9/15

N2 - The enhancement of thermal stability in nanocrystalline-amorphous (NC-a) materials was investigated by a modified Monte Carlo Potts method. The thermal stability, including the grain size stability and amorphous distribution stability, was found to be controlled by the amorphous fraction f and the energy ratio (Jgb/Jint) of the NC-NC grain boundary energy to the NC-a interfacial energy. The best thermal stability for temperatures up to 1550 K was observed with f = 0.279 and Jgb/Jint = 12, where finer grains are surrounded by thin and coherent NC-a boundaries.

AB - The enhancement of thermal stability in nanocrystalline-amorphous (NC-a) materials was investigated by a modified Monte Carlo Potts method. The thermal stability, including the grain size stability and amorphous distribution stability, was found to be controlled by the amorphous fraction f and the energy ratio (Jgb/Jint) of the NC-NC grain boundary energy to the NC-a interfacial energy. The best thermal stability for temperatures up to 1550 K was observed with f = 0.279 and Jgb/Jint = 12, where finer grains are surrounded by thin and coherent NC-a boundaries.

KW - Grain growth

KW - Microstructure

KW - Monte Carlo simulation

KW - Nanocomposite materials

KW - Thermal stability

UR - http://www.scopus.com/inward/record.url?scp=84904266840&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84904266840&origin=recordpage

U2 - 10.1016/j.scriptamat.2014.05.015

DO - 10.1016/j.scriptamat.2014.05.015

M3 - RGC 21 - Publication in refereed journal

SN - 1359-6462

VL - 87

SP - 33

EP - 36

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Enhancement of thermal stability by microstructural refinement in nanocomposite materials

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Research Keywords

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