Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Observation of Surface Energy Variations and Condensate Behaviors on Nitrogen Ion Implanted Aluminum Surfaces

질소이온 조사된 알루미늄 표면의 표면에너지 변화 및 증기응축 현상 관찰

  • Kim, Kiwook (School of Mechanical Engineering, Pusan National University) ;
  • Jeong, Ji Hwan (School of Mechanical Engineering, Pusan National University)
  • Received : 2017.08.25
  • Accepted : 2017.09.28
  • Published : 2017.12.10
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Abstract

Nitrogen ion with various levels of dose and irradiation energy was irradiated on aluminum surfaces. Contact angle of surface was increased and surface color was changed by nitrogen ion implantation. During steam condensation experiment using nitrogen ion implanted specimen, dropwise condensation initially occurred on specimens. However, condensation mode eventually changed into filmwise condensation. The color of the surface was also changed from yellow-brown to silver-white. This change of surface color and condensation mode were results of hydrolysis reaction between condensate and nitrogen ion implanted on aluminum surfaces.

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References

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