Formation and disintegration investigation of fivefold annealing twins in copper nanoparticles

被引：10
作者：
Deng, Ziliang [1 ]
Luo, Jun [1 ]
Yuan, Wenjuan [1 ]
Xi, Wei [1 ]
机构：
[1] Tianjin Univ Technol, Ctr Electron Microscopy, TUT FEI Joint Lab,Sch Mat Sci & Engn, Tianjin Key Lab Adv Funct Porous Mat,Inst New Ene, Tianjin 300384, Peoples R China
来源：
SCRIPTA MATERIALIA | 2019年 / 169卷
基金：
中国国家自然科学基金;
关键词：
Fivefold twin; In-situ TEM; Cu nanopartide; FORMATION MECHANISM; DEFORMATION TWINS; DEFECTS; SURFACE; CU;
D O I：
10.1016/j.scriptamat.2019.04.043
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Fivefold annealing twins (FAT) have been assumed to form by grain boundary migration according to the Ashby model. However, the mechanism of boundary migration lacks experimental support. Moreover, the FAT disintegration process has never been reported. In our experiment, the complete formation and disintegration process of FAT in copper nanoparticles was investigated by in-situ transmission electron microscopy with high temporal and spatial resolution. The results show that FAT formation and disintegration arises from the layer-by-layer migration of twin boundaries, induced by partial dislocation emission. This experimental observation is significant to the basic understanding of twinning mechanisms. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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收藏
页码：42 / 45
页数：4
相关论文
共 35 条
  • [1] Formation of fivefold deformation twins in an ultrafine-grained copper alloy processed by high-pressure torsion
    An, X. H.
    Lin, Q. Y.
    Wu, S. D.
    Zhang, Z. F.
    Figueiredo, R. B.
    Gao, N.
    Langdon, T. G.
    [J]. SCRIPTA MATERIALIA, 2011, 64 (03) : 249 - 252
  • [2] Signatures of the helical phase in the critical fields at twin boundaries of noncentrosymmetric superconductors
    Aoyama, Kazushi
    Savary, Lucile
    Sigrist, Manfred
    [J]. PHYSICAL REVIEW B, 2014, 89 (17):
  • [3] Fivefold twin formation during annealing of nanocrystalline Cu
    Bringa, E. M.
    Farkas, Diana
    Caro, A.
    Wang, Y. M.
    McNaney, J.
    Smith, R.
    [J]. SCRIPTA MATERIALIA, 2008, 59 (12) : 1267 - 1270
  • [4] Formation of fivefold deformation twins in nanocrystalline face-centered-cubic copper based on molecular dynamics simulations
    Cao, A. J.
    Wei, Y. G.
    [J]. APPLIED PHYSICS LETTERS, 2006, 89 (04)
  • [5] Size dependence and associated formation mechanism of multiple-fold annealing twins in nanocrystalline Cu
    Cao, Z. H.
    Xu, L. J.
    Sun, W.
    Shi, J.
    Wei, M. Z.
    Pan, G. J.
    Yang, X. B.
    Zhao, J. W.
    Meng, X. K.
    [J]. ACTA MATERIALIA, 2015, 95 : 312 - 323
  • [6] Dry-growth of silver single-crystal nanowires from porous Ag structure
    Chen, Chuantong
    Nagao, Shijo
    Jiu, Jinting
    Zhang, Hao
    Sugahara, Tohru
    Suganuma, Katsuaki
    [J]. APPLIED PHYSICS LETTERS, 2016, 108 (26)
  • [7] Preparation of Cu2O nanoparticles in cupric chloride solutions with a simple mechanochemical approach
    Chen, D.
    Ni, S.
    Fang, J. J.
    Xiao, T.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 504 : S345 - S348
  • [8] Antiferromagnetic coupling between martensitic twin variants observed by magnetic resonance in Ni-Mn-Sn-Co films
    Golub, V. O.
    Lvov, V. A.
    Aseguinolaza, I.
    Salyuk, O.
    Popadiuk, D.
    Kharlan, Y.
    Kakazei, G. N.
    Araujo, J. P.
    Barandiaran, J. M.
    Chernenko, V. A.
    [J]. PHYSICAL REVIEW B, 2017, 95 (02)
  • [9] Electronic structure in the twinned 10M martensite phase of the Ni49.7Mn29.1Ga21.2 Heusler alloy: Experiment and theory
    Heczko, Oleg
    Drchal, Vaclav
    Cichon, Stanislav
    Fekete, Ladislav
    Kudrnovsky, Josef
    Kratochvilova, Irena
    Lancok, Jan
    Chab, Vladimir
    [J]. PHYSICAL REVIEW B, 2018, 98 (18)
  • [10] Fivefold annealing twin in nanocrystalline Cu
    Huang, P.
    Dai, G. Q.
    Wang, F.
    Xu, K. W.
    Li, Y. H.
    [J]. APPLIED PHYSICS LETTERS, 2009, 95 (20)
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