Migration of grain boundaries in free-standing nanocrystalline thin films

被引：9
|
作者：
Dynkin, N. K. [2 ]
Gutkin, M. Yu [1 ,2 ,3 ]
机构：
[1] Russian Acad Sci, Inst Problems Mech Engn, St Petersburg 199178, Russia
[2] St Petersburg State Polytech Univ, Dept Phys Mat Strength & Plast, St Petersburg 195251, Russia
[3] St Petersburg State Univ, Dept Theory Elast, St Petersburg 198504, Russia
来源：
SCRIPTA MATERIALIA | 2012年 / 66卷 / 02期
关键词：
Grain boundary migration; Grain growth; Nanocrystalline materials; Thin films; Disclinations; PLASTIC-DEFORMATION; ROOM-TEMPERATURE; GROWTH; AL; NANOINDENTATION; ALUMINUM; DYNAMICS; BEHAVIOR; METALS; COPPER;
D O I：
10.1016/j.scriptamat.2011.09.043
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Theoretical models are suggested which describe stress-coupled migration of grain boundaries in free-standing nanocrystalline films under external loading. The critical stresses for the start of migration and the transition from stable to unstable migration are calculated and analyzed with respect to the grain size, grain boundary misorientation angle, film thickness, distance from the closest free surface, and migration direction. It is shown that the least stable are low-angle grain boundaries of larger length, which emerge on the surfaces of the thinnest films. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：73 / 76
页数：4
相关论文
共 50 条
  • [1] Hydrogen effects on the mechanical properties of nanocrystalline free-standing Palladium thin films
    Ali, M. L.
    Crespo, E. A.
    Ruda, M.
    Bringa, E. M.
    Ramos, S. B.
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2020, 45 (30) : 15213 - 15225
  • [2] Cleavage cracking across twin boundaries in free-standing silicon thin films
    Jin Chen
    Weiyi Lu
    Yu Qiao
    Applied Physics A, 2008, 91
  • [3] Cleavage cracking across twin boundaries in free-standing silicon thin films
    Chen, Jin
    Lu, Weiyi
    Qiao, Yu
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2008, 91 (04): : 663 - 666
  • [4] Fracture toughness of free-standing nanocrystalline copper-chromium composite thin films
    Kim, Hyun-Gyu
    Yi, Jin-Woo
    Kim, Seong-Woong
    Kim, Kyung-Suk
    Kumar, K. Sharvan
    ACTA MATERIALIA, 2015, 84 : 95 - 109
  • [5] Bendable, Free-Standing Calcite Thin Films
    Nakamura, Shiho
    Naka, Kensuke
    LANGMUIR, 2015, 31 (06) : 2014 - 2018
  • [6] Mechanical testing of free-standing thin films
    Sharpe, WN
    Hemker, KJ
    SURFACE ENGINEERING 2001 - FUNDAMENTALS AND APPLICATIONS, 2001, 697 : 215 - 226
  • [7] Mechanical testing of free-standing thin films
    Sharpe, WN
    Hemker, KJ
    MATERIALS SCIENCE OF MICROELECTROMECHANICAL SYSTEMS (MEMS) DEVICES IV, 2002, 687 : 293 - 304
  • [8] Thickness dependence of free-standing thin films
    Guerin, Gerald
    PruD'Homme, Robert E.
    JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2007, 45 (01) : 10 - 17
  • [9] Free-standing flexible nanocrystalline-ZnO-impregnated polyvinylidene fluoride composite thin films
    Bhunia, R.
    Ghosh, D.
    Ghosh, B.
    Hussain, S.
    Bhar, R.
    Pal, A. K.
    JOURNAL OF COMPOSITE MATERIALS, 2015, 49 (25) : 3089 - 3101
  • [10] Probe diffusion in thin PS free-standing films
    Pu, Y
    White, H
    Rafailovich, MH
    Sokolov, J
    Patel, A
    White, C
    Wu, WL
    Zaitsev, V
    Schwarz, SA
    MACROMOLECULES, 2001, 34 (24) : 8518 - 8522
12345