Dislocation strain as the mechanism of phonon scattering at grain boundaries

被引：127

作者：

Kim, Hyun-Sik ^{[1
,2
,3
]}

Kang, Stephen D. ^{[1
,2
]}

Tang, Yinglu ^{[1
,2
,4
]}

Hanus, Riley ^{[1
]}

Snyder, G. Jeffrey ^{[1
,2
]}

机构：

[1] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

[2] CALTECH, Dept Appl Phys & Mat Sci, Pasadena, CA 91125 USA

[3] Samsung Elect, Samsung Adv Inst Technol, Mat Res Ctr, Suwon 443803, South Korea

[4] Swiss Fed Labs Mat Sci & Technol, Uberlandstr 129, CH-8600 Dubendorf, Switzerland

来源：

MATERIALS HORIZONS | 2016年 / 3卷 / 03期

关键词：

LATTICE THERMAL-CONDUCTIVITY; GE-SI ALLOYS; THERMOELECTRIC-MATERIALS; LOW TEMPERATURES; CRYSTAL; METALS; ARRAYS; FILMS; HEAT;

D O I：

10.1039/c5mh00299k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Thermal conductivities of polycrystalline thermoelectric materials are satisfactorily calculated by replacing the commonly used Casimir model (freqeuncy-independent) with grain boundary dislocation strain model (frequency-dependent) of Klemens. It is demonstrated that the grain boundaries are better described as a collection of dislocations rather than perfectly scattering interfaces.

引用

收藏

页码：234 / 240

页数：7

相关论文

共 50 条

[21] Dislocation descriptors of low and high angle grain boundaries with convolutional neural networks [J].

Noh, William ;

Chew, Huck Beng .

EXTREME MECHANICS LETTERS, 2024, 68

[22] MOLECULAR DYNAMICS SIMULATION OF DISLOCATION EMISSION FROM SHOCKED ALUMINUM GRAIN BOUNDARIES [J].

Pozzi, C. ;

Germann, T. C. ;

Hoagland, R. G. .

SHOCK COMPRESSION OF CONDENSED MATTER - 2009, PTS 1 AND 2, 2009, 1195 :765-+

[23] Atomistic simulation of a dislocation shear loop interacting with grain boundaries in nanocrystalline aluminium [J].

Bitzek, E. ;

Brandl, C. ;

Weygand, D. ;

Derlet, P. M. ;

Van Swygenhoven, H. .

MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING, 2009, 17 (05)

[24] A NEW FORMULATION OF COUPLING AND SLIDING MOTIONS OF GRAIN BOUNDARIES BASED ON DISLOCATION STRUCTURE [J].

Zhang, Luchan ;

Xiang, Yang .

SIAM JOURNAL ON APPLIED MATHEMATICS, 2020, 80 (06) :2365-2387

[25] Phonon scattering of interfacial strain field between dissimilar lattices [J].

Meng, Qingping ;

Wu, Lijun ;

Zhu, Yimei .

PHYSICAL REVIEW B, 2013, 87 (06)

[26] Mechanism of Strain Rate Effect Based on Dislocation Theory [J].

Qin Kun ;

Yang Li-Ming ;

Hu Shi-Sheng .

CHINESE PHYSICS LETTERS, 2009, 26 (03)

[27] Coherent Phonon-Grain Boundary Scattering in Silicon Inverse Opals [J].

Ma, Jun ;

Parajuli, Bibek R. ;

Ghossoub, Marc G. ;

Mihi, Agustin ;

Sadhu, Jyothi ;

Braun, Paul V. ;

Sinha, Sanjiv .

NANO LETTERS, 2013, 13 (02) :618-624

[28] First-Principle-Based Phonon Transport Properties of Nanoscale Graphene Grain Boundaries [J].

Sandonas, Leonardo Medrano ;

Sevincli, Haldun ;

Gutierrez, Rafael ;

Cuniberti, Gianaurelio .

ADVANCED SCIENCE, 2018, 5 (02)

[29] Strain effects on catalytic activity and stability of PdM nanoalloys with grain boundaries [J].

Wang, Junpeng ;

Jin, Tao ;

Guo, Longfei ;

Li, Zhen ;

Wang, Chongyang ;

Shan, Shuang ;

Tang, Quan ;

Pan, Bowei ;

Chen, Fuyi .

RSC ADVANCES, 2025, 15 (22) :17317-17329

[30] INHOMOGENEOUS DISLOCATION STRUCTURES OF DISCLINATED GRAIN BOUNDARIES IN GRAPHENE AND ULTRAFINE-GRAINED METALS [J].

Konakov, Ya. V. ;

Ovid'ko, I. A. ;

Sheinerman, A. G. .

REVIEWS ON ADVANCED MATERIALS SCIENCE, 2013, 35 (1-2) :104-109

← 1 2 3 4 5 →