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Improved Potting of Litz Wires for High Power Density Electric MotorSpecific details including selections of process materials, tooling/fixture setups, and a step-by-step procedure for scaling-up demonstrations of the newly developed potting process, namely vacuum-assisted axial injection potting (VaAIP) have been fully developed for the stator winding of high power density electric motors for the future electrified aircrafts. Various essential pre-trial subtasks identified for the full-scale demonstrations were carried out. To date, optimization of cure condition and thermal stability of the coating epoxy and determination of optimum application conditions and thermal stability of the high temperature encapsulant wax were completed successfully and other subtasks were under way. The efforts to enhance thermal conductivity of the selected potting compound by adding conductive nano fillers such as boron nitride nanosheets (BNNS) have also been advanced. Initially, selection of the best mixing method and procedures was attempted via extensive and systematic experimental design.
Document ID
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Euy-sik Eugene Shin
(Universities Space Research Association Columbia, Maryland, United States)
Date Acquired
June 28, 2021
Publication Date
July 8, 2021
Publication Information
Publication: Proceedings of the AIAA/IEEE Electric Aircraft Technologies Symposium (EATS) 2021
Publisher: AIAA
Issue Publication Date: August 9, 2021
Subject Category
Aircraft Propulsion And Power
Energy Production And Conversion
Meeting Information
Meeting: AIAA/IEEE Electric Aircraft Technologies Symposium (EATS)
Location: Virtual
Country: US
Start Date: August 11, 2021
End Date: August 13, 2021
Sponsors: American Institute of Aeronautics and Astronautics, Institute of Electrical and Electronics Engineers
Funding Number(s)
WBS: 081876.
Distribution Limits
Public Use Permitted.
Technical Review
Single Expert
Litz wire
High power density
Motor winding
Electrified aircraft powertrain
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