Polymer Nanocomposites with Enhanced Dielectric Strength and Reduced Thermal Contraction for Superconductor Cable
Abstract
This project aims to develop new cryogenic dielectrics that can be used in gas helium-cooled HTS cables. We propose to investigate polymer-nanoparticle composites specifically designed for low-temperature applications. The project will provide significant improvement on two crucial parameters of HTS dielectrics: enhanced dielectric strength and reduced thermal contraction. This research will utilize the complementary effects of composites in which benefits are enhanced while drawbacks are reduced or eliminated. Insulating polymers and nanoparticles will be used to ensure the overall dielectric strength of the composites. The large thermal contraction of polymers will be compensated by filler materials with lower thermal expansion coefficients. We will explore various combinations of polymers and dielectric nanoparticles, prepare nanocomposites, and test their performance at cryogenic temperatures. The research objectives include investigation of polymer nanocomposites for HTS cables, characterization of their properties in a wide temperature range of 40-350 K, and evaluation of composite dielectric coatings on HTS cables.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Oct 09, 2018
- Source ID
- N001741710008
Entities
People
- Wei Xue
Organizations
- Rowan University
- United States Navy