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Showing 1 to 20 of 157 for “"Contact resistance"”.
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Thermal contact resistance.
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1967.
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Vibration effects on thermal contact resistance.
Massachusetts Institute of Technology. Dept. of Nuclear Engineering. Thesis. 1967. M.S.
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Thermal Contact Resistance in a Vacuum Environment
Made available in DSpace on 2014-12-09T17:13:29Z (GMT). No. of bitstreams: 1 6406036.pdf: 6363004 bytes, checksum: c156ec61878e4b40ad1a1386a418dfa4 (MD5) Previous issue date: 1963
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Contact resistance in RFID chip-antenna interfaces
… a force-deflection relationship and a force-contact area relationship between a flat planar solid and a spherical solid in terms of material and surface properties of the two bodies. This relationship was determined and it was discovered that the force was directly proportional to both the …
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An Inverse Algorithm To Estimate Thermal Contact Resistance
… this temperature drop is the thermal contact resistance, which is defined as the ratio of the temperature drop to the heat flux normal to the interface. The thermal contact resistance is due to roughness effects between mating surfaces which cause certain regions of the mating surfaces …
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Fretting corrosion and contact resistance of edge-card connectors
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1984.
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Prediction of the Macroscopic Contact Area in Thermal Contact Resistance
Made available in DSpace on 2014-12-09T17:13:43Z (GMT). No. of bitstreams: 1 6808165.pdf: 2604457 bytes, checksum: 3778cd3b1e03a5af532737b4f598362e (MD5) Previous issue date: 1967
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Contact resistance study on polycrystalline silicon thin-film solar cells on glass
… cell metallisation procedure, within which the contact resistance is always a big issue. In this thesis, the contact resistance of aluminium contacts on poly-Si thin-film solar cells on glass is investigated. To the best of the author’s knowledge, this is the first ever contact resistance …
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Structural health monitoring of bolted joints using thermal contact resistance and ultrasonic signals
… include using ultrasonic signals and thermal contact resistance metrics correlated to contact pressure to assess the joints integrity. Moreover, contact pressure distribution at the joint surface was examined using pressure sensitive films. Experimental measurements showed that there were …
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A multi-scale iterative approach for finite element modeling of thermal contact resistance
… a key factor in the performance of many contact applications including thermal contact resistance. However, essentially all analytical and numerical models of thermal contact resistance and thermal contact conductance either neglect surface topography or make simplifications and …
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De-risking thermal management challenges in automotive vehicles: oil circulation and thermal contact resistance
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01
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An assessment of fin-tube thermal contact resistance in round-tube-plain-fin heat exchangers
… but a drawback is the potentially large contact resistance between tubes and fins. Previous studies have investigated this topic under the exclusion of air-side convection. The present work is more realistic, because the contact resistance is evaluated in the presence of air-side …
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Investigation of transverse electrical resistivity and electrical contact resistance of carbon fibers/carbon fiber composites
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-08-01
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Enhancing the heat transfer performance of compact heat exchangers by minimizing the contact resistance between fins and tubes
Thermal contact resistance or, its reciprocal, thermal contact conductance is an important parameter in a wide range of thermal phenomena. It plays a significant role in heat transfer applications such as electronic packaging and nuclear reactors. This parameter also appears in fin-tube heat …
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Nano-scale ohmic contacts for III-V MOSFETs
… III-V logic MOSFETs is the series resistance. To achieve the performance goals, it is necessary to fabricate source and drain ohmic contacts with ultra-low contact resistance, perhaps as low as 50 [Omega] · [mu]m. This is particularly difficult to achieve as the device size shrinks …
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Method and instrumentation for the measurement and characterization of MEMS fabricated electrical contacts
MEMS fabricated electrical contacts consist of two MEMS fabricated surfaces which are physically separated and brought together for the purpose of carrying current. MEMS fabricated electrical contacts are used in a wide variety of applications including MEMS relays, wafer probing applications, and …
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Fabrication and Characterization of Thermoelectric Materials and Their Stable Contacts at Elevated Temperatures
Contact resistance plays an important role in maintaining high device performance in thermoelectric (TE) generators and coolers. In order to achieve 95% device efficiency, the contact resistance needs to be < 10% of the total leg resistance. Therefore, stable contact electrodes with low contact …
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Two-dimensional Electronics: From Material Synthesis to Device Applications
… is given, followed by a detailed study of the contact engineering in TMDs with a focus on the strategies to lower the contact resistance. Effective approaches have been demonstrated to solve these issues. These include: (1) metal-catalyst-free synthesis of graphene on various insulating …
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Characterization of organic field effect transistors for OLED displays
… the circuit design of OLED pixel drivers. The contact resistance, flat band voltage, and mobility are extracted from top contact and bottom contact transistors with current-voltage (I-V) and low frequency capacitance-voltage (C-V) measurements. Extraction of contact resistance is found to be …
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Kontakto grafenas – metalas formavimas ir elektrinių savybių tyrimas /
In this work, graphene - metal contact theory and recent publications in this field are discussed. Short introduction into graphene structure and its monolayer synthesis as well as graphene transfer methods using polymer coatings are presented. The main idea of this research is to form a graphene – …
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