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Studies of liquid metal surfaces using Auger spectroscopyThe surface composition of liquid gallium-tin alloys is studied in an Auger electron spectrometer as a function of bulk composition and temperature. The sessile drop samples are cleaned by argon ion bombardment sputtering of the liquid. This technique produces surfaces that are entirely free of impurities within the sensitivity of the spectrometer and remain so for many days. Tin is found to be strongly adsorbed at the liquid-vacuum interface. Surface concentrations based on Auger measurements are found to be in reasonably good agreement with values calculated from surface tension measurements interpreted in terms of a monolayer depth distribution model for the adsorbed tin.
Document ID
19830062083
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hardy, S.
(National Bureau of Standards Washington, DC, United States)
Fine, J.
(National Bureau of Standards Washington, DC, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
Astronautics (General)
Meeting Information
Meeting: Materials processing in the reduced gravity environment of space; Annual Meeting
Location: Boston, MA
Start Date: November 16, 1981
End Date: November 18, 1981
Sponsors: NASA
Accession Number
83A43301
Funding Number(s)
CONTRACT_GRANT: NASA ORDER H-27954-B
Distribution Limits
Public
Copyright
Other

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