Rausch MH, Leipertz A, Fröba AP (2010)
Publication Language: English
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2010
Publisher: American Chemical Society
Book Volume: 26
Pages Range: 5971-5975
DOI: 10.1021/la904293f
The present work provides new information on the characteristics of ion implanted metallic surfaces responsible for the adjustment of stable dropwise condensation (DWC) of steam. The results are based on condensation experiments and surface analyses via contact angle (CA) and surface free energy (SEE) measurements as well as scanning electron microscopy (SEM). For studying possible influences of the base material and the implanted ion species, commercially pure titanium grade 1, aluminum alloy Al 6951, and stainless steel AISI 321 were treated with N+, C+, O+, or Ar+ using ion beam implantation technology. The studies suggest that chemically inhomogeneous surfaces are instrumental M inducing DWC. As this inhomogeneity is apparently caused by particulate precipitates bonded to the metal surface, the resulting nanoscale surface roughness may also influence the condensation form. On such surfaces nucleation mechanisms seem to be capable of maintaining DWC even when CA and SEE measurements indicate increased wettability. The precipitates are probably formed due to the supersaturation of ion implanted metal surfaces with doping elements. For high-alloyed materials like AISI 321 or Hastelloy C-276, oxidation stimulated by the condensation process obviously tends to prod Me similar surfaces suitable for DWC.
APA:
Rausch, M.H., Leipertz, A., & Fröba, A.P. (2010). On the Characteristics of Ion Implanted Metallic Surfaces Inducing Dropwise Condensation of Steam. Langmuir, 26, 5971-5975. https://dx.doi.org/10.1021/la904293f
MLA:
Rausch, Michael Heinrich, Alfred Leipertz, and Andreas Paul Fröba. "On the Characteristics of Ion Implanted Metallic Surfaces Inducing Dropwise Condensation of Steam." Langmuir 26 (2010): 5971-5975.
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