Results 21 to 30 of about 62,678 (311)

Analysis of Specificity of ecological insulation material thermal Parameters

open access: yesMATEC Web of Conferences, 2018
This paper is devoted to analysis of insulation materials quality and characteristics, method for the determination of thermal conductivity coefficient and the influence of various factors on the thermal conductivity coefficient. The paper summarizes the
Gaujena Baiba   +3 more
doaj   +1 more source

Analysis of heat conductivity mechanisms in PbSnTe solid solutions

open access: yesФізика і хімія твердого тіла, 2023
In the paper, a theoretical calculation of the coefficient of thermal conductivity of solid solutions of PbSnTe was carried out. The contribution of phonon scattering on substitution atoms to the effect of reducing thermal conductivity has been ...
O.Z Khshanovska   +3 more
doaj   +1 more source

Determination of Thermal Conductivity of Nano-ceramic Thermal Insulation Coating on the Surface of a Heat Pipe [PDF]

open access: yesE3S Web of Conferences
In the pursuit of conserving non-renewable fuel and energy resources and mitigating harmful emissions into the atmosphere, thermal insulation is commonly employed in practice for heated elements, including but not limited to building exteriors, boilers ...
Vafaeva Khristina Maksudovna   +8 more
doaj   +1 more source

Studying thermal conductivity of magnetic nanofluids in constant magnetic field

open access: yesMATEC Web of Conferences, 2017
The thermal conductivity of magnetic nanofluids in a constant magnetic field is investigated. The concentration dependence of the thermal conductivity coefficient of magnetic fluids based on water and iron oxide nanoparticles Fe3O4 in a constant magnetic
Pryazhnikov Maxim   +3 more
doaj   +1 more source

Sol–gel processing and characterization of (RE-Y)-zirconia powders for thermal barrier coatings [PDF]

open access: yes, 2011
The effect of doping on the structural, morphological and thermal properties of ZrO2–XO1.5 (X=Y, La, Sm, Er) solid solutions for thermal barrier (TBC) applications was investigated. Oxide powders of various compositions from 9.7 to 40 mol% XO1.5 (X=Y, La,
Ansart, Florence   +9 more
core   +1 more source

Field investigation of efficient thermal conductivity of snow cover on Spitsbergen

open access: yesЛëд и снег, 2015
This paper presents results of field investigations of coefficient of efficient thermal conductivity of snow with different structures and densities. Observations were performed in spring of 2013 in the vicinity of meteorological station Barentsburg. The
N. I. Osokin, A. V. Sosnovsky
doaj   +1 more source

Optimization of the thermophysical properties of the thermal barrier coating materials based on GA-SVR machine learning method: illustrated with ZrO2 doped DyTaO4 system

open access: yesMaterials Research Express, 2021
It is a critical issue to reduce the thermal conductivity and increase the thermal expansion coefficient of ceramic thermal barrier coating (TBC) materials in the course of their utilization.
Wenjie Zhu   +5 more
doaj   +1 more source

Calculation of thermal conductivity coefficient of thermal insulation mixtures

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract The majority of prospective deposits of oil and natural gas in the Russian Federation are located in the zones of permanently frozen rocks - the permafrost. This region is characterized not only by harsh climatic conditions, causing difficulty in development of the deposits, but also by negative cryogenic processes impacting the
A F Galkin, I V Kurta, V Yu Pankov
openaire   +1 more source

The effect of hydrogen functionalization on the thermal properties of coiled carbon nanotubes [PDF]

open access: yesمجله مدل سازی در مهندسی, 2023
Making new materials to control heat transfer has always been of interest. Carbon-based nanomaterials are promising for heat transfer due to their excellent thermal properties.
Mahdi Azhari   +2 more
doaj   +1 more source

An investigation into the dynamics of partial discharge propagation in mineral oil based nanofluids [PDF]

open access: yes, 2014
Recent studies present a model which assumes that conductive nanoparticles can reduce the speed of the positive streamer propagation in mineral oil due to electron trapping at the particle surface. Time resolved partial discharge measurements can be used
Peter H.F. Morshuis   +7 more
core   +1 more source

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