Author
M. Deutsch
Bio: M. Deutsch is an academic researcher from Bar-Ilan University. The author has contributed to research in topics: Thermal resistance & Thermal contact conductance. The author has an hindex of 1, co-authored 2 publications receiving 21 citations.
Papers
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TL;DR: In this article, the electrical resistance of simple screw-fastened joints between two bare copper blocks and blocks with various materials interposed was measured at 4.2 K. Based upon these measurements, ways to improve the low temperature thermal conductance of such joints are indicated.
21 citations
TL;DR: In this article, a perforated tube support for low temperature use is described, which has a thermal conductance of up to 5 times lower than that of a simple unperforated thin wall tube support having the same wall thickness and rigidity.
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TL;DR: In this article, a brief review of quantum effects in the electronic and phononic transport through nanowires is presented, which is based on the classical molecular dynamics method and combined force and current measurements have shown the relationship between atomic structure and transport properties.
Abstract: Nanowires, point contacts and metallic single-wall carbon nanotubes are one-dimensional nanostructures which display important size-dependent quantum effects. Quantization due to the transverse confinement and resultant finite level spacing of electronic and phononic states are responsible for some novel effects. Many studies have revealed fundamental and technologically important properties, which are being explored for fabricating future nanodevices. Various simulation studies based on the classical molecular dynamics method and combined force and current measurements have shown the relationship between atomic structure and transport properties. The atomic, electronic and transport properties of these nanostructures have been an area of active research. This brief review presents some quantum effects in the electronic and phononic transport through nanowires.
71 citations
TL;DR: In this paper, the influence of variations of interface temperature on thermal contact conductance between aluminium and stainless steel joints was determined by modeling the deformation at the interface for different values of surface finish and contact pressure over the range of interface temperatures.
36 citations
TL;DR: In this paper, the authors measured the thermal contact conductance of several demountable copper joints below 1 K. The joints were made by bolting together either two flat surfaces or a clamp around a rod.
33 citations
TL;DR: In this paper, thermal contact resistance data of pressed copper-copper and gold-plated coppercopper contacts from nearly twenty measurement programs that span across past fifty years are reviewed and compared with the experimental data.
28 citations
01 Feb 1997
TL;DR: In this paper, the authors present a summary of the limited pressed contact data available in the literature, which is often very narrow in scope and even more often it has not been published in an easily retrievable fashion, if published at all.
Abstract: The performance of cryogenic instruments is often a function of their operating temperature. Thus, designers of cryogenic instruments often are required to predict the operating temperature of each instrument they design. This requires accurate thermal models of cryogenic components which include the properties of the materials and assembly techniques used. When components are bolted or otherwise pressed together, a knowledge of the thermal performance of such joints are also needed. In some cases, the temperature drop across these joints represents a significant fraction of the total temperature difference between the instrument and its cooler. While extensive databases exist on the thermal properties of bulk materials, similar databases for pressed contacts do not. This has often lead to instrument designs that avoid pressed contacts or to the over-design of such joints at unnecessary expense. Although many people have made measurements of contact conductances at cryogenic temperatures, this data is often very narrow in scope and even more often it has not been published in an easily retrievable fashion, if published at all. This paper presents a summary of the limited pressed contact data available in the literature.
27 citations