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- W2122135637 abstract "The article investigates the matter of thermophysical properties of metals: copper, silver and gold and composite materials based on polytetrafluoroethylene (fluoroplastic-4), aromatic polyamide (phenylone C-2) and polyimide PM-69 depending on temperature and concentration of the fillers. The aim of work was: 1) to establish the dependencies of change of enthalpy, thermal conductivity coefficient, thermal capacity coefficient under stable pressure and linear coefficient of thermal dilation on temperature, radius and ordinal number of atoms of metals; 2) to search for correlation relationships and approximation mathematical models between these characteristics; 3) to study thermophysical properties of composite materials based on polytetrafluoroethylene, aromatic polyamide and polyimide depending on temperature and concentration of the fillers.In our work we used the methods of thermophysical measurements of thermal conductivity and methods of probability theory and mathematical statistics. As a result, we have received approximate mathematical models of dependency of enthalpy, thermal conductivity coefficient, thermal capacity coefficient and linear coefficient of thermal dilation on temperature of copper, silver and gold.We received new correlations of dependencies of thermal conductivity coefficient on temperature and concentration for composite materials based on polytetrafluoroethylene, aromatic polyamide and polyimide and type of the fillers. Theoretical analysis of concentration dependencies demonstrated divergences between experimental and estimated data according to equations of Maxwell-Aiken, Dulnev, Odelevskyi and Nielsen." @default.
- W2122135637 created "2016-06-24" @default.
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- W2122135637 date "2013-10-25" @default.
- W2122135637 modified "2023-09-27" @default.
- W2122135637 title "Thermophysical properties of metals and polymer compositions" @default.
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- W2122135637 doi "https://doi.org/10.15587/1729-4061.2013.18136" @default.
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