Grain boundaries effects on hole morphology and growth during solid state dewetting of thin films

Vadim Derkach; Amy Novick-Cohen; Eugen Rabkin

doi:10.1016/j.scriptamat.2017.02.046

Grain boundaries effects on hole morphology and growth during solid state dewetting of thin films

Vadim Derkach
, Amy Novick-Cohen
, Eugen Rabkin

Technion - Israel Institute of Technology

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

Abstract

We probe the effects of grain boundaries on thin film dewetting numerically for initially circular and elongated holes in single and bi-crystalline systems. We find that grain boundaries play a critical role in determining hole morphologies, in particular in the formation of highly branched hole morphologies, since while elongated holes in single crystals tend to become rounder over time, circular holes in bi-crystals destabilize, leading to accelerated dewetting along the grain boundaries.

Original language	English
Pages (from-to)	115-118
Number of pages	4
Journal	Scripta Materialia
Volume	134
DOIs	https://doi.org/10.1016/j.scriptamat.2017.02.046
State	Published - 1 Jun 2017

Keywords

Dewetting
Grain boundaries
Simulation
Surface diffusion
Thin films

ASJC Scopus subject areas

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

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10.1016/j.scriptamat.2017.02.046

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title = "Grain boundaries effects on hole morphology and growth during solid state dewetting of thin films",

abstract = "We probe the effects of grain boundaries on thin film dewetting numerically for initially circular and elongated holes in single and bi-crystalline systems. We find that grain boundaries play a critical role in determining hole morphologies, in particular in the formation of highly branched hole morphologies, since while elongated holes in single crystals tend to become rounder over time, circular holes in bi-crystals destabilize, leading to accelerated dewetting along the grain boundaries.",

keywords = "Dewetting, Grain boundaries, Simulation, Surface diffusion, Thin films",

author = "Vadim Derkach and Amy Novick-Cohen and Eugen Rabkin",

note = "Funding Information: The authors would like to acknowledge the support of the Israel Science Foundation (Grant \# 1200/16), as well as the support of the Russell Berrie Nanotechnology Institute through the Nevet Program and through a Capital Equipment Usage Grant. Publisher Copyright: {\textcopyright} 2017 Acta Materialia Inc.",

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doi = "10.1016/j.scriptamat.2017.02.046",

language = "English",

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T1 - Grain boundaries effects on hole morphology and growth during solid state dewetting of thin films

AU - Derkach, Vadim

AU - Novick-Cohen, Amy

AU - Rabkin, Eugen

N1 - Funding Information: The authors would like to acknowledge the support of the Israel Science Foundation (Grant # 1200/16), as well as the support of the Russell Berrie Nanotechnology Institute through the Nevet Program and through a Capital Equipment Usage Grant. Publisher Copyright: © 2017 Acta Materialia Inc.

PY - 2017/6/1

Y1 - 2017/6/1

N2 - We probe the effects of grain boundaries on thin film dewetting numerically for initially circular and elongated holes in single and bi-crystalline systems. We find that grain boundaries play a critical role in determining hole morphologies, in particular in the formation of highly branched hole morphologies, since while elongated holes in single crystals tend to become rounder over time, circular holes in bi-crystals destabilize, leading to accelerated dewetting along the grain boundaries.

AB - We probe the effects of grain boundaries on thin film dewetting numerically for initially circular and elongated holes in single and bi-crystalline systems. We find that grain boundaries play a critical role in determining hole morphologies, in particular in the formation of highly branched hole morphologies, since while elongated holes in single crystals tend to become rounder over time, circular holes in bi-crystals destabilize, leading to accelerated dewetting along the grain boundaries.

KW - Dewetting

KW - Grain boundaries

KW - Simulation

KW - Surface diffusion

KW - Thin films

UR - https://www.scopus.com/pages/publications/85015763769

U2 - 10.1016/j.scriptamat.2017.02.046

DO - 10.1016/j.scriptamat.2017.02.046

M3 - Article

SN - 1359-6462

VL - 134

SP - 115

EP - 118

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Grain boundaries effects on hole morphology and growth during solid state dewetting of thin films

Abstract

Keywords

ASJC Scopus subject areas

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