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Showing 1 to 11 of 11 for “"kapitza resistance"”.
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The Kapitza Resistance at Metal - Helium Interfaces
Made available in DSpace on 2015-05-12T22:39:09Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7511791.PDF: 4029729 bytes, checksum: 25b2532c59a50190f1e666befdfccc6d (MD5) Previous issue date: 1974
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The Kapitza resistance at metal-helium interfaces
The Kapitza resistance has been measured between liquid or solid 3He or 4He and surfaces of Mg, Cu, W, and Au in the temperature range 0.03-0.3 K. The experimental data are in relatively good agreement with the acoustic mismatch theory modified so as to include phonon attenuation in the metal. …
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Steady-state and second-sound measurements of Kapitza resistance
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-20T18:50:47Z No. of bitstreams: 1 1980_katerberg.pdf: 2270499 bytes, checksum: 43be2016e3e480be2f087f61ef3b8472 (MD5)
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Modeling of Thermal Transport Properties in Metallic and Oxide Fuels
… Xe concentration that offsets the grain boundary Kapitza resistance effect on the thermal conductivity in a high burnup structure is studied. Next, the mechanisms on how Xe gas bubbles affect the UO2 thermal conductivity have been studied using MD. At a fixed total porosity, the effective thermal …
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Thermal boundary resistance
… mismatch theory for the thermal boundary (Kapitza) resistance has peen modified so as to include the effect of phonon attenuation near the interface. The modified theory is in good agreement below 0.2 K with present measurements on metal-dielectric interfaces and with previous measurements …
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The thermal boundary conductance between a thin ⁴He film and its substrate
… for the bulk case is the reciprocal of the Kapitza resistance. For the thin films studied, if the boundary conductance is proportional to Tn, n lies between six and eight. A possible mechanism for the boundary conductance is discussed.
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Properties of the Helium-3 a-B Phase Boundary
… some static properties, the surface energy and Kapitza resistance, is given. Then the symmetry of the interface is discussed. It is pointed out that, due to the presence of the condensate, many symmetries are broken. The effects of this are discussed; in particular it is shown that a transverse …
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Properties of the 3He A-B phase boundary
… some static properties, the surface energy and Kapitza resistance, is given. Then the symmetry of the interface is discussed. It is pointed out that, due to the presence of the condensate, many symmetries are broken. The effects of this are discussed; in par ticular it is shown that a transverse …
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Phonon scattering by ferroelectric domain walls in potassium dihydrogen phosphate
… at the domain boundaries (often seen in Kapitza resistance studies) is at most 1%.
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Nanoscale thermal transport through solid-solid and solid-liquid interfaces
… of a thermal gradient. All interfaces offer resistance to heat flow in the form of temperature drop at the interface. In micro and nano scale devices, the contribution of this resistance often becomes comparable to, or greater than, the intrinsic thermal resistance offered by the device or …
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Heat dissipation from carbon nano-electronics
The incorporation of graphitic compounds such as carbon nanotubes (CNTs) and graphene into nano-electronic device packaging holds much promise for waste heat management given their high thermal conductivities. However, as these graphitic materials must be used in together with other …