Results 251 to 260 of about 5,609,671 (298)

Effects of nanosized contact spots on thermal contact resistance

Journal of Applied Physics, 2008
We investigate the effects of nanosized contact spots on the thermal contact resistance (TCR) in multiscale contacts. As the contact size decreases below the phonon mean free path, the thermal conductivity varies with the size of the contact and is not the same as its bulk counterpart.
Sangyoung Lee, Yong Hoon Jang, Woochul Kim   +2 more
openaire   +1 more source

Transient thermal contact resistance

International Journal of Heat and Mass Transfer, 1991
Abstract The short-time asymptotic solution for the heat flow between two similar bodies placed in contact has recently been given by Barber. The long-time asymptotic solution is given here: it has exactly the same form as the short-time asymptote Q KT 0 = C 0 + C 1 √(παt) but, in general, has different coefficients.
openaire   +1 more source

Thermal resistance (Rth) enhancement by optimizing TO package thermal contact

2010 34th IEEE/CPMT International Electronic Manufacturing Technology Symposium (IEMT), 2009
The trend for package size shrinkage has created challenges to thermal performance while improving the cost performance. When TO package size shrink by minimizing the leadframe copper usage, challenges in package warpage and thermal contact become great.
Lee Teck Sim, Darakorn Sae Le
openaire   +1 more source

Thermal Contact Resistance in Vacuum

Journal of Heat Transfer, 1967
Similar or dissimilar materials thermal contact resistance in vacuum with negligible film effect, obtaining constriction ...
openaire   +1 more source

Thermal Contact Resistance at the Nb-Cu Interface

2015
Niobium thin film sputtered copper cavities are strongly limited for the application in high field accelerators by the unsolved “Q-slope” problem. In the present paper, we examine the different contributions of the niobium film, the copper substrate, the Helium-Copper interface and the Niobium-Copper Interface, proposing the hypothesis that main cause ...
V. Palmieri, R. Vaglio
openaire   +2 more sources

Reducing the thermal resistance of a pressed contact

Applied Energy, 1988
Abstract The resistance to a heat flow passing across the interface between two surfaces which are pressed together, may be reduced by the presence of a relatively-soft interfacial insert of appropriate material and thickness. A computer-based mathematical model has been developed to predict the optimal thickness for this interfacial insert, which ...
P.W. O'Callaghan, S.D. Probert
openaire   +1 more source

Thermal contact resistance in injection molding

Polymer Engineering & Science, 1990
AbstractThis paper describes a method for obtaining the thermal contact resistance (TCR) between an injection molded part and its mold. Due to the absence of TCR the simulated cooling times obtained from Polycool II, a computer aided engineering (CAE) package for cooling simulation of injection molding, have compared poorly with both field and ...
Chi J. Yu, J. E. Sunderland, C. Poli
openaire   +1 more source

Experimental techniques for thermal contact resistance measurements

Experimental Thermal and Fluid Science, 1993
ABSTRACT A number of different experimental techniques have been used to determine the thermal resistance of materials in contact, depending upon specific test requirements. These techniques and associated experimental facilities are reviewed, including the traditional cut-bar vertical-column test facilities, and more specialized facilities and ...
openaire   +1 more source

Thermal Contact Resistance

Journal of the Society of Mechanical Engineers, 1961
Yu. P. Shlykov, E. A. Ganin
openaire   +2 more sources

Thermal contact resistance in micromoulding

2012
Yes
Gonzalez Castro, Gabriela, Babenko, Maksims, Bigot, S., Sweeney, John, Ugail, Hassan, Whiteside, Benjamin R.   +5 more
openaire   +1 more source