Book ChapterDOI
The Thermal Conductivity of Nonmetallic Crystals
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In this article, the authors studied the thermal conductivity of non-metallic crystals at temperatures comparable to or higher than the Debye temperature, where the dominant carriers of thermal energy are phonons and the dominant scattering mechanism is the intrinsic phonon-phonon scattering.Abstract:
Publisher Summary This chapter reviews the thermal conductivity of nonmetallic crystals at temperatures comparable to or higher than the Debye temperature. It deals with the intrinsic behavior of such pure crystals at high temperatures. In such crystals, the dominant carriers of thermal energy are phonons and the dominant scattering mechanism to be considered is the intrinsic phonon–phonon scattering. This is a small section of the much larger problem of the thermal conductivity of nonmetallic solids and clearly it neglects possible heat transport by photons, charge carriers, polarons, and magnons. It also neglects other possible phonon scattering mechanisms such as isotopes, impurities, vacancies, charge carriers, dislocations, grain boundaries, and crystal boundaries. It presents the absolute value of the thermal conductivity, K, as determined by phonon–phonon scattering, the temperature dependence of K, the volume dependence of K, the change in K upon melting, and the minimum value of K. The chapter discusses a composite curve for the thermal conductivity versus temperature of pure KCl measured at a constant pressure of, say, one atmosphere.read more
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References
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Journal ArticleDOI
Nonmetallic crystals with high thermal conductivity
TL;DR: The diamond has the highest known thermal conductivity at 300k K at room temperature as discussed by the authors, and is the only non-metallic crystal with thermal conductivities of > 1 W/cmK at 300K.
Journal ArticleDOI
Thermal Conductivity and Specific Heat of Noncrystalline Solids
R. C. Zeller,Robert O. Pohl +1 more
TL;DR: The thermal conductivity of vitreous Si, Se, and silica-and germania-based glasses has been measured between 0.05 and 100 \ifmmode^\circ\else\text degree\fi{}K, suggesting a Rayleigh-type scattering mechanism as mentioned in this paper.
Journal ArticleDOI
Thermal Conductivity of Silicon and Germanium from 3°K to the Melting Point
C. J. Glassbrenner,Glen A. Slack +1 more
TL;DR: The thermal conductivity of single crystals of silicon has been measured from 3 to 1580\ifmmode^\circ\else\text degree\fi{}K and of single crystal of germanium with a radial flow technique as mentioned in this paper.