年間 12 号発行
ISSN 印刷: 1044-5110
ISSN オンライン: 1936-2684
IF:
1.2
5-Year IF:
1.8
Immediacy Index:
0.3
Eigenfactor:
0.00095
JCI:
0.28
SJR:
0.341
SNIP:
0.536
CiteScore™::
1.9
H-Index:
57
Indexed in
ON QUANTIFYING INTERFACIAL THERMAL RESISTANCE AND SURFACE ENERGY DURING MOLTEN MICRODROPLET SURFACE DEPOSITION
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要約
Understanding and controlling the deposition of a molten microdroplet on a colder substrate with simultaneous heat transfer and solidification is of central importance to a host of technologies, exemplified by novel methods of electronic microchip manufacturing. The physics of the interfaciat phenomena involved are to date only partially understood. For instance, the transient resistance to heat transfer at the droplet—substrate interface cannot be quantified theoretically, and adequate experimental data are lacking. Serious obstacles to experimental determination are the very short time and length scales involved (of the order of micrometers: and microseconds). In the present article, a numerical modeling for droplet impact and solidification based on the Navier-Stokes and energy equations is used in order to reproduce transient measurements of the deposition of a eutectic Pb-Sn microdroplet on a multilayer wafer. The resistance to heal transfer at the droplet—wafer interface and the surface energy of the molten microdroplet are determined by matching numerical and experimental results. This successfully demonstrated indirect method is of interest if direct transient thermal resistance data are not available (as is very often the case).
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Bhardwaj Rajneesh, Longtin Jon P., Attinger Daniel, Interfacial temperature measurements, high-speed visualization and finite-element simulations of droplet impact and evaporation on a solid surface, International Journal of Heat and Mass Transfer, 53, 19-20, 2010. Crossref
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Bhardwaj Rajneesh, Longtin Jon P., Attinger Daniel, A numerical investigation on the influence of liquid properties and interfacial heat transfer during microdroplet deposition onto a glass substrate, International Journal of Heat and Mass Transfer, 50, 15-16, 2007. Crossref
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Bhardwaj Rajneesh, Attinger Daniel, Non-isothermal wetting during impact of millimeter-size water drop on a flat substrate: Numerical investigation and comparison with high-speed visualization experiments, International Journal of Heat and Fluid Flow, 29, 5, 2008. Crossref
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Grigoriev Sergey, Vereschaka Alexey, Milovich Filipp, Sitnikov Nikolay, Andreev Nikolay, Bublikov Jury, Sotova Catherine, Sadov Ilya, Investigation of the Influence of Microdroplets on the Coatings Nanolayer Structure, Coatings, 10, 12, 2020. Crossref
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Hashmi Ali, Strauss Adam, Xu Jie, Freezing of a Liquid Marble, Langmuir, 28, 28, 2012. Crossref