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Evaluation of ultrasonic cavitation of metallic and non-metallic surfaces1,1,2 trichloro-1,2,2 trifluoro ethane (CFC-113) commercially known as Freon-113 is the primary test solvent used for validating the cleaned hardware at the Kennedy Space Center (KSC). Due to the ozone depletion problem, the current United States policy calls for the phase out of Freons by 1995. NASAs chlorofluorocarbon (CFC) replacement group at KSC has opted to use water as a replacement fluid for the validation process since water is non-toxic, inexpensive, and is environmentally friendly. The replacement validation method calls for the ultrasonification of the small parts with water at 52 C for a cycle or two of 10 min duration wash using commercial ultrasonic baths. In this project, experimental data was obtained to assess the applicability of the proposed validation method for any damage of the metallic and non-metallic surfaces resulting from ultrasonic cavitation.
Document ID
19930010211
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mehta, Narinder K.
(Puerto Rico Univ. Mayaguez., United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1992
Publication Information
Publication: Univ. of Central Florida, NASA(ASEE Summer Faculty Fellowship Program
Subject Category
Acoustics
Accession Number
93N19400
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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