Thermal conductivity reduction by nanostructuration in electrodeposited CuNi alloys

Dramatic thermal conductivity reduction by nanostructures

Reduction of thermal conductivity in PbTe:Tl by alloying with TlSbTe2

A series of single-phase polycrystalline (TlSbTe2)x(Tl0.02Pb0.98Te)1−x (x= 0, 0.05, 0.1) compounds were made to reduce thermal conductivity while maintaining the enhanced Seebeck coefficients found in PbTe doped with Tl. Transport property measurements confirmed that high Seebeck coefficients from doping with Tl are retained by alloying with TlSbTe2. At the same time, a thermal conductivity as ...

Thermal conductivity reduction in phononic nanomesh structures

Device Fabrication All devices were prepared on silicon-on-insulator (SOI; Soitec Inc.) wafers. The SOI wafers were pre-doped by thermally diffusing spin-on-dopant (Boron A; Filmtronics, Inc.) with rapid thermal annealing (RTA) at 820C for 3 minutes. The resulting sheet resistance indicates a doping concentration of 2x10 cm, with the thickness of the silicon epilayer determined by atomic force...

‏‎suppression of coke formation in thermal cracking by coke inhibitors‎‏

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

Thermal conductivity reduction in core-shell nanowires

Ming Hu,1,* Xiaoliang Zhang,1,2 Konstantinos P. Giapis,3,† and Dimos Poulikakos1,‡ 1Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland 2Center for Heat and Mass Transfer, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China 3Division of Chemistry and Chemical Engineer...