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Rapid evaporation at the superheat limit of methanol, ethanol, butanol and n-heptane on platinum films supported by low-stress SiN membranes

Ching, Eric J. and Avedisian, C. Thomas and Cavicchi, Richard C. and Chung, Do Hyun and Rah, Kyupaeck J. and Carrier, Michael J. (2016) Rapid evaporation at the superheat limit of methanol, ethanol, butanol and n-heptane on platinum films supported by low-stress SiN membranes. International Journal of Heat and Mass Transfer, 101 . pp. 707-718. ISSN 0017-9310. https://resolver.caltech.edu/CaltechAUTHORS:20160930-091243721

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Abstract

The bubble nucleation temperatures of several organic liquids (methanol, ethanol, butanol, n-heptane) on stress-minimized platinum (Pt) films supported by SiN membranes is examined by pulse-heating the membranes for times ranging from 1 μs to 10 μs. The results show that the nucleation temperatures increase as the heating rates of the Pt films increase. Measured nucleation temperatures approach predicted superheat limits for the smallest pulse times which correspond to heating rates over 10^8 K/s, while nucleation temperatures are significantly lower for the longest pulse times. The microheater membranes were found to be robust for millions of pulse cycles, which suggests their potential in applications for moving fluids on the microscale and for more fundamental studies of phase transitions of metastable liquids.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.ijheatmasstransfer.2016.04.008DOIArticle
http://www.sciencedirect.com/science/article/pii/S0017931015318226PublisherArticle
ORCID:
AuthorORCID
Rah, Kyupaeck J.0000-0003-1898-2930
Additional Information:© 2016 Elsevier Ltd. Received 30 December 2015, Revised 3 April 2016, Accepted 3 April 2016, Available online 7 June 2016.
Subject Keywords:Homogeneous nucleation; Boiling; Superheat limit; Bubble nucleation; Bubbles; Pulse heating
Record Number:CaltechAUTHORS:20160930-091243721
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160930-091243721
Official Citation:Eric J. Ching, C. Thomas Avedisian, Richard C. Cavicchi, Do Hyun Chung, Kyupaeck J. Rah, Michael J. Carrier, Rapid evaporation at the superheat limit of methanol, ethanol, butanol and n-heptane on platinum films supported by low-stress SiN membranes, International Journal of Heat and Mass Transfer, Volume 101, October 2016, Pages 707-718, ISSN 0017-9310, http://dx.doi.org/10.1016/j.ijheatmasstransfer.2016.04.008. (http://www.sciencedirect.com/science/article/pii/S0017931015318226)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70683
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:30 Sep 2016 16:25
Last Modified:09 Mar 2020 13:19

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