Thermal transport in phononic crystals: The role of zone folding effect

2012 ◽  
Vol 111 (7) ◽  
pp. 073508 ◽  
Author(s):  
Edward Dechaumphai ◽  
Renkun Chen
Keyword(s):  
Thermal Transport ◽  
Phononic Crystals ◽  
Zone Folding

Grain-Size-Dependent Thermal Transport Properties in Nanocrystalline Yttria-Stabilized Zirconia

2001 ◽  
Vol 703 ◽  
Author(s):  
Ho-Soon Yang ◽  
J.A. Eastman ◽  
L.J. Thompson ◽  
G.-R. Bai
Keyword(s):  
Grain Boundaries ◽  
Thermal Transport ◽  
Chemical Vapor ◽  
Yttria Stabilized Zirconia ◽  
Organic Chemical ◽  
Stabilized Zirconia ◽  
Size Dependent ◽  
Metal Organic ◽  
Organic Chemical Vapor Deposition

ABSTRACTUnderstanding the role of grain boundaries in controlling heat flow is critical to the success of many envisioned applications of nanocrystalline materials. This study focuses on the effect of grain boundaries on thermal transport behavior in nanocrystalline yttria-stabilized zirconia (YSZ) coatings prepared by metal-organic chemical vapor deposition.

Subwavelength acoustic topological edge states realized by zone folding and the role of boundaries selection

2018 ◽  
Vol 124 (17) ◽  
pp. 175107 ◽  
Author(s):  
Hongqing Dai ◽  
Muyan Qian ◽  
Junrui Jiao ◽  
Baizhan Xia ◽  
Dejie Yu
Keyword(s):  
Edge States ◽  
Zone Folding

The role of optical phonons in intermediate layer-mediated thermal transport across solid interfaces

2017 ◽  
Vol 19 (28) ◽  
pp. 18407-18415 ◽  
Author(s):  
Eungkyu Lee ◽  
Tengfei Luo
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Optical Phonon ◽  
Thermal Transport ◽  
Intermediate Layer ◽  
Dynamics Simulation ◽  
Optical Phonons ◽  
Spectral Matching

A study with molecular dynamics simulation shows that optical phonon vibrational spectral matching by an intermediate layer can significantly impact thermal transport across diatomic solid interfaces.

Unconventional relaxation of hydrodynamic modes in anharmonic chains under strong pressure fluctuations

2021 ◽  
Author(s):  
Da Ke ◽  
Wei Zhong ◽  
Sergey V Dmitriev ◽  
Daxing Xiong
Keyword(s):  
Thermal Transport ◽  
Numerical Scheme ◽  
Pressure Fluctuations ◽  
Hydrodynamic Theory ◽  
Hydrodynamic Modes ◽  
Large Pressure

Abstract We develop an effective numerical scheme to capture hydrodynamic modes in general classical anharmonic chains. This scheme is based on the hydrodynamic theory suggested by Ernst-Hauge-van Leeuwen, which takes full role of pressure fluctuations into account. With this scheme we show that the traditional pictures given by the current nonlinear fluctuating hydrodynamic theory are valid only when the system's pressure is zero and the pressure fluctuations are weak. For nonvanishing pressure, the hydrodynamic modes can, however, respond to small and large pressure fluctuations and relax in some distinct manners. Our results shed new light on understanding thermal transport from the perspective of hydrodynamic theory.

Role of angular bending freedom in regulating thermal transport in polymers

2019 ◽  
Vol 125 (9) ◽  
pp. 095104 ◽  
Author(s):  
Harish Subramanyan ◽  
Weiye Zhang ◽  
Jixiong He ◽  
Kyunghoon Kim ◽  
Xiaobo Li ◽  
...  
Keyword(s):  
Thermal Transport

Role of electronic thermal transport in amorphous metal recrystallization: A molecular dynamics study

2018 ◽  
Vol 149 (6) ◽  
pp. 064502
Author(s):  
Zachary D. McClure ◽  
Samuel Temple Reeve ◽  
Alejandro Strachan
Keyword(s):  
Molecular Dynamics ◽  
Thermal Transport ◽  
Amorphous Metal
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