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Water-Glass-Based Thermal Paste for High-Temperature Applications
R.A. Shishkin, N.A. Erkhova, A.R. Beketov, A.A. Elagin
Department of Rare Metals and Nanomaterials, Institute of Physics and Engineering, Ural Federal University, Russia
received February 18, 2014, received in revised form March 24, 2014, accepted May 25, 2014
Vol. 5, No. 3, Pages 199-202 DOI: 10.4416/JCST2014-00005
Abstract
Inorganic water-glass-based thermal pastes exhibit a higher thermal conductivity coefficient than silicon-based pastes. They can also be used at elevated temperatures. The optimum filler content, silicate modulus, application of a modifier and pressure were studied. As the result, a significant increase in the thermal conductivity at 508 °C could be explained. The MgO-Na2O-SiO2 system with high magnesium oxide content has not been studied adequately, so special attention is paid to this system composition.
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Keywords
Water glass, silicate modulus, magnesium oxide, boron nitride, thermal conductivity, porosity, thermal paste, composite material
References
1 Panova, N.G.: Fillers for polymer composite materials: Handbook. M.: Chemistry, 736, (1981)
2 Elagin, A.A., Shishkin, R.A., Baranov, M.V., Beketov, A.R., Stoyanov, O.V.: Thermal conductive materials and thermal pastes review. Kazan Thenological University Bulletin, 4, 132 – 137, (2013).
3 Gladush, Y.: Thermal conductive materials in electronics, Components and Technologies, 80, 174 – 175, (2008).
4 Korneev, V.I., Danilov V.V.: Liquid and soluble glass. Production edition. St. Petersburg: Stroyizdat, 164, (1996).
5 Parker, W.J., Jenkins, R.J., Butler, C.P., Abbott, G.L.: A flash method of determining thermal diffusivity, heat capacity, and thermal conductivity, J. Appl. Phys., 32, 1679, (1961).
6 Duderov, Y.G., Duderov I.G.: Ceramic technology calculations: handbook. M.: Stroyizdat, 80, (1973).
7 Chung, D.D.L.: Materials for thermal conduction, Appl. Therm. Eng., 21, (16), 1593 – 1605, (2001).
8 Nilsson, O., Sandberg, O., Bäckström, G.: Thermal conductivity of B2O3-glass under pressure, Int. J. Thermophys., 6, (3), 267 – 273, (1985).
9 Hiroshima, Y., Hamamoto, Y., Yoshida, S., Matsuoka, J.: Thermal conductivity of mixed alkali silicate glasses at low temperature, J. Non-Cryst. Solids, 354, (2 – 9), 341 – 344, (2008).
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