English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Thermal conductivity of PbTe-CoSb3 bulk polycrystalline composite: role of microstructure and interface thermal resistance

Kosonowski, A., Kumar, A., Parashchuk, T., Cardoso-Gil, R., & Wojciechowski, K. (2021). Thermal conductivity of PbTe-CoSb3 bulk polycrystalline composite: role of microstructure and interface thermal resistance. Dalton Transactions, 50(4), 1261-1273. doi:10.1039/d0dt03752d.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Kosonowski, Artur1, Author
Kumar, Ashutosh1, Author
Parashchuk, Taras1, Author
Cardoso-Gil, Raul2, Author              
Wojciechowski, Krzyszof1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Raul Cardoso, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863420              

Content

show
hide
Free keywords: -
 Abstract: Systematic experimental and theoretical research on the role of microstructure and interface thermal resistance on the thermal conductivity of the PbTe-CoSb3bulk polycrystalline composite is presented. In particular, the correlation between the particle size of the dispersed phase and interface thermal resistance (Rint) on the phonon thermal conductivity (κph) is discussed. With this aim, a series of PbTe-CoSb3polycrystalline composite materials with different particle sizes of CoSb3was prepared. The structural (XRD) and microstructural analysis (SEM/EDXS) confirmed the intended chemical and phase compositions. Acoustic impedance difference (ΔZ) was determined from measured sound velocities in PbTe and CoSb3phases. It is shown thatκphof the composite may be reduced when particle size of the dispersed phase (CoSb3) is smaller than the critical value of ∼230 nm. This relationship was concluded to be crucial for controlling the heat transport phenomena in composite thermoelectric materials. The selection of the components with different elastic properties (acoustic impedance) and particle size smaller than Kapitza radius leads to a new direction in the engineering of composite TE materials with designed thermal properties. © The Royal Society of Chemistry 2021.

Details

show
hide
Language(s): eng - English
 Dates: 2021-01-022021-01-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1039/d0dt03752d
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Dalton Transactions
  Abbreviation : Dalton Trans.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 50 (4) Sequence Number: - Start / End Page: 1261 - 1273 Identifier: ISSN: 1477-9226
CoNE: https://pure.mpg.de/cone/journals/resource/954925269323