Role of Longitudinal and Transverse Phonons in the Thermal Conductivity of Alkali Halides

1972 ◽  
Vol 6 (10) ◽  
pp. 4013-4016 ◽  
Author(s):  
D. P. Singh ◽  
G. S. Verma
Keyword(s):  
Thermal Conductivity ◽  
Alkali Halides ◽  
Longitudinal And Transverse Phonons

ELECTROLYTIC COLORATION IN ALKALI HALIDES. ROLE OF THE SPACE CHARGE ON THE COLOR PROPAGATION

1976 ◽  
Vol 37 (C7) ◽  
pp. C7-86-C7-86
Author(s):  
M. T. MONTOJO ◽  
F. JAQUE ◽  
C. SÁNCHEZ
Keyword(s):  
Space Charge ◽  
Alkali Halides

Lattice Thermal Conductivity Modelling of a Diatomic Nanoscale Material

2020 ◽  
Vol 10 (5) ◽  
pp. 602-609
Author(s):  
Adil H. Awad
Keyword(s):  
Thermal Conductivity ◽  
Lattice Thermal Conductivity ◽  
Phonon Scattering ◽  
Correction Term ◽  
Nanoscale Material ◽  
New Approach ◽  
Two Samples ◽  
Conductivity Modelling ◽  
Callaway Model

Introduction: A new approach for expressing the lattice thermal conductivity of diatomic nanoscale materials is developed. Methods: The lattice thermal conductivity of two samples of GaAs nanobeam at 4-100K is calculated on the basis of monatomic dispersion relation. Phonons are scattered by nanobeam boundaries, point defects and other phonons via normal and Umklapp processes. Methods: A comparative study of the results of the present analysis and those obtained using Callaway formula is performed. We clearly demonstrate the importance of the utilised scattering mechanisms in lattice thermal conductivity by addressing the separate role of the phonon scattering relaxation rate. The formulas derived from the correction term are also presented, and their difference from Callaway model is evident. Furthermore their percentage contribution is sufficiently small to be neglected in calculating lattice thermal conductivity. Conclusion: Our model is successfully used to correlate the predicted lattice thermal conductivity with that of the experimental observation.

Role of electron–phonon coupling in thermal conductivity of metallic nanofluids

2019 ◽  
Vol 52 (48) ◽  
pp. 485302 ◽  
Author(s):  
Dong-Xing Song ◽  
Yu-Feng Zhang ◽  
Wei-Gang Ma ◽  
Xing Zhang
Keyword(s):  
Thermal Conductivity ◽  
Phonon Coupling ◽  
Electron Phonon Coupling

Role of graphene waviness on the thermal conductivity of graphene composites

2012 ◽  
Vol 111 (1) ◽  
pp. 221-225 ◽  
Author(s):  
Ke Chu ◽  
Wen-sheng Li ◽  
Hongfeng Dong
Keyword(s):  
Thermal Conductivity

Thermal conductivity of molten alkali halides: Temperature and density dependence

2009 ◽  
Vol 130 (4) ◽  
pp. 044505 ◽  
Author(s):  
Norikazu Ohtori ◽  
Takuya Oono ◽  
Keiichi Takase
Keyword(s):  
Thermal Conductivity ◽  
Density Dependence ◽  
Alkali Halides
Sign in / Sign up

Export Citation Format

Share Document