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(a) Pool boiling facility and (b)design of ITO-sapphire heater with relevant dimension (in nm).
(a) Scanning electron microscope (SEM) image of smooth porous hydrophilic heater at 100 000×. (b)Contact angle of water droplet on thesmooth non-porous hydrophobic surface. (c) Measured profile of posts. (d) SEM image of tightly-spaced posts.
Measured values of surface parameters and CHF data.
Effect of post height and spacing on CHF of non-porous, hydrophilic surfaces (βr < 5° for all surfaces). (Each test was repeated three times).
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