Heterogeneity in the Small-Scale Deformation Behavior of Disordered Nanoparticle Packings

被引：9

作者：

Lefever, Joel A. ^{[1
]}

Jacobs, Tevis D. B. ^{[1
,4
]}

Tam, Qizhan ^{[2
]}

Hor, Jyo Lyn ^{[3
]}

Huang, Yun-Ru ^{[3
,5
]}

Lee, Daeyeon ^{[3
]}

Carpick, Robert W. ^{[2
]}

机构：

[1] Univ Penn, Dept Mat Sci & Engn, 3231 Walnut St, Philadelphia, PA 19104 USA

[2] Univ Penn, Dept Mech Engn & Appl Mech, Philadelphia, PA 19104 USA

[3] Univ Penn, Dept Biomol & Chem Engn, Philadelphia, PA 19104 USA

[4] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA

[5] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA

来源：

NANO LETTERS | 2016年 / 16卷 / 04期

关键词：

Disordered nanoparticle packing; amorphous material; atomic force microscopy; nanoindentation; soft spot; shear transformation zone; BULK METALLIC-GLASS; MECHANICAL-PROPERTIES; ELASTIC-MODULUS; PLASTIC-FLOW; INDENTATION; HARDNESS; FILMS; LOAD;

D O I：

10.1021/acs.nanolett.5b05319

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Atomic force microscopy-based nanoindentation is used to image and probe the local mechanical properties of thin disordered nanoparticle packings. The probed region is limited to the size of a few particles, and an individual particle can be loaded and displaced to a fraction of a single particle radius. The results demonstrate heterogeneous mechanical response that is location-dependent. The weak locations may be analogous to the "soft spots" previously predicted in glasses and other disordered packings.

引用

页码：2455 / 2462

页数：8

共 50 条

[21] Primary melts reveal small-scale heterogeneity in convecting mantle
Sobolev, AV
Hofmann, AW
Shimizu, N
Chaussidon, M
Metrich, N
Nikogosian, IK
Anderson, AT
[J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 2002, 66 (15A) : A725 - A725
[22] Accounting for heterogeneity in small-scale fisheries management: The Amazon case
Castello, Leandro
McGrath, David G.
Arantes, Caroline C.
Almeida, Oriana T.
[J]. MARINE POLICY, 2013, 38 : 557 - 565
[23] A latent threat to biodiversity: consequences of small-scale heterogeneity loss
Hewitt, Judi
Thrush, Simon
Lohrer, Andrew
Townsend, Michael
[J]. BIODIVERSITY AND CONSERVATION, 2010, 19 (05) : 1315 - 1323
[24] Site specific: Heterogeneity of small-scale gold mining in Ghana
Ferring, David
Hausermann, Heidi
Effah, Emmanuel
[J]. EXTRACTIVE INDUSTRIES AND SOCIETY-AN INTERNATIONAL JOURNAL, 2016, 3 (01): : 171 - 184
[25] Small-Scale Intraslab Heterogeneity Weakens Into the Mantle Transition Zone
Shen, Zhichao
Zhan, Zhongwen
Jackson, Jennifer M.
[J]. GEOPHYSICAL RESEARCH LETTERS, 2021, 48 (23)
[26] A latent threat to biodiversity: consequences of small-scale heterogeneity loss
Judi Hewitt
Simon Thrush
Andrew Lohrer
Michael Townsend
[J]. Biodiversity and Conservation, 2010, 19 : 1315 - 1323
[27] Small-scale heterogeneity of fertilization success in a broadcast spawning octocoral
Coma, R
Lasker, HR
[J]. JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY, 1997, 214 (1-2) : 107 - 120
[28] Small-Scale Plastic Deformation of Nanocrystalline High Entropy Alloy
Mridha, Sanghita
Komarasamy, Mageshwari
Bhowmick, Sanjit
Mishra, Rajiv S.
Mukherjee, Sundeep
[J]. ENTROPY, 2018, 20 (11)
[29] Shear wave splitting and upper mantle deformation in French Polynesia: Evidence for small-scale heterogeneity related to the Society hotspot
Russo, RM
Okal, EA
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1998, 103 (B7) : 15089 - 15107
[30] SMALL-SCALE HETEROGENEITY AND LARGE-SCALE VELOCITY STRUCTURE OF THE CONTINENTAL-CRUST
LEVANDER, AR
HOLLIGER, K
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1992, 97 (B6) : 8797 - 8804

← 1 2 3 4 5 →