Yang, Lung-Jieh and Yao, Tze-Jung and Huang, Yu-Lin and Xu, Yong and Tai, Yu-Chong (2002) Marching velocity of capillary meniscuses in microchannels. In: Technical Digest. MEMS 2002 IEEE International Conference. Fifteenth IEEE International Conference on Micro Electro Mechanical Systems. IEEE , Piscataway, NJ, pp. 93-96. ISBN 0780371852. https://resolver.caltech.edu/CaltechAUTHORS:20190501-154133904
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Abstract
This paper describes a new method and an analytical model for characterizing the surface energy inside a microchannel using the measurement of the marching velocity of a capillary meniscus. This method is based on the fact that surface tension of a liquid meniscus in a hydrophilic case produces pressure to pull liquid into the channel and the velocity of the meniscus is related to the surface energy. Both Parylene and silicon nitride microchannels with different surface conditions were fabricated to perform the liquid-filling experiments. It is shown that our model agrees well with the data and this is a valid method.
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| Additional Information: | © 2002 IEEE. The authors want to thank the helps from Dr. Xing Yang and Mr. Ken Walsh of the Caltech Micromachining group. This project is also partially supported by the NSF Engineering Research Center for Neuromorphic Systems Engineering (CNSE) at Caltech and National Science Foundation (NSC) from Taiwan, R.O.C. | |||||||||
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| DOI: | 10.1109/memsys.2002.984098 | |||||||||
| Record Number: | CaltechAUTHORS:20190501-154133904 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190501-154133904 | |||||||||
| Official Citation: | Lung-Jieh Yang, Tze-Jung Yao, Yu-Lin Huang, Yong Xu and Yu-Chong Tai, "Marching velocity of capillary meniscuses in microchannels," Technical Digest. MEMS 2002 IEEE International Conference. Fifteenth IEEE International Conference on Micro Electro Mechanical Systems (Cat. No.02CH37266), Las Vegas, NV, USA, 2002, pp. 93-96. doi: 10.1109/MEMSYS.2002.984098 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 95149 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | George Porter | |||||||||
| Deposited On: | 02 May 2019 14:50 | |||||||||
| Last Modified: | 16 Nov 2021 17:10 |
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