Ultralow thermal conductivity of nanoparticle packed bed

Autor:	Ravi Prasher, X. Jack Hu, Kelly Lofgreen
Rok vydání:	2007
Předmět:	Packed bed Thermal contact conductance Thermal conductivity Materials science Physics and Astronomy (miscellaneous) Thermal insulation business.industry High density Nanoparticle Composite material business
Zdroj:	Applied Physics Letters. 91:203113
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.2814959
Popis:	We show that thermal conductivity of packed bed of alumina nanoparticles can be as low as 0.035W∕mK which is only 35% higher than the thermal conductivity of air and is smaller than the recently reported lowest thermal conductivity of solids using disordered layered WeS2. These findings show a promising approach for making low-cost and ultralow thermal conductivity thermal insulation materials with high density and good sustainability at high pressures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ce75439e8bccb665e49702884b4e3541 https://doi.org/10.1063/1.2814959 Zobrazit plný text záznamu