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High temperature dielectric properties of apical, kapton, peek, teflon af, and upilex polymers
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Khachen, W. Baumann, E. D. Hammoud, A. N. Overton, E. Laghari, J. R. Suthar, J. L. Myers, I. T. |
| Copyright Year | 1992 |
| Description | Reliable lightweight systems capable of providing electrical power at the magawatt level are a requirement for future manned space exploration missions. This can be achieved by the development of high temperature insulating materials which are not only capable of surviving the hostile space environment but can contribute to reducing the mass and weight of the heat rejection system. In this work, Apical, Upilex, Kapton, Teflon AF, and Peek polymers are characterized for AC and DC dielectric breakdown in air and in silicone oil at temperatures up to 250 C. The materials are also tested in terms of their dielectric constant and dissipation factor at high temperatures with an electrical stress of 60 Hz, 200 V/mil present. The effects of thermal aging on the properties of the films are determined after 15 hours of exposure to 200 and 250 C, each. The results obtained are discussed and conclusions are made concerning the suitability of these dielectrics for use in capacitors and cable insulations in high temperature environments. |
| File Size | 389608 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920019432 |
| Archival Resource Key | ark:/13960/t7sn53p2g |
| Language | English |
| Publisher Date | 1992-01-01 |
| Access Restriction | Open |
| Subject Keyword | Electronics And Electrical Engineering Insulation Kapton Trademark Oils Capacitors Dielectric Properties Spacecraft Power Supplies Dielectrics High Temperature Manned Space Flight Ohmic Dissipation Refractory Materials Temperature Effects Weight Reduction Aging Materials Space Exploration Permittivity Silicones Peek Alternating Current Teflon Trademark Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
