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Monitoring Polymer Curing Via Electromagnetic ImpedanceNew nondestructive in-situ electromagnetic-impedance measurement technique senses cure-processing properties of high-temperature, high-performance thermostat and thermoplastic resins. Continuous frequency-dependent measurement and analysis performed during curing cycle. Monitors and measures molecular properties of polymeric resin in liquid and solid states. Applications include nondestructive means for evaluation of materials, determination of "window" boundaries of curing cycles of thermoplastics and thermoset resins, and for online, closed-loop control of curing cycles.
Document ID
19920000459
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Freeman, William T.
(NASA Langley Research Center, Hampton, VA.)
Covington, John C.
(NASA Langley Research Center, Hampton, VA.)
Kranbuehl, David E.
(College of William and Mary)
Hoff, Melanie
(College of William and Mary)
Delos, Susan
(College of William and Mary)
Date Acquired
August 15, 2013
Publication Date
August 1, 1992
Publication Information
Publication: NASA Tech Briefs
Volume: 16
Issue: 8
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
LAR-13802
Accession Number
92B10459
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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