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Demonstration of High Shear Strength Insulation for Fusion Applications

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-SC0021808
Agency Tracking Number: 0000259249
Amount: $199,973.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: 29a
Solicitation Number: N/A
Solicitation Year: 2021
Award Year: 2021
Award Start Date (Proposal Award Date): 2021-06-28
Award End Date (Contract End Date): 2022-03-27
Small Business Information
2600 Campus Drive, Suite D
Lafayette, CO 80026-3359
United States
DUNS: 161234687
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Andrea Haight
 (303) 664-0394
Business Contact
 Lori Bass
Phone: (303) 664-0394
Research Institution

Future fusion reactors based on high temperature superconductors (HTS), which allow for higher magnetic fields and more compact reactor profiles will present additional challenges for the electrical insulation systems used in magnet construction. In addition to higher shear stresses brought about by the higher magnetic fields in these devices, fusion magnets are subjected to thousands of mechanical cycles as the fusion device is operated. The primary objective of the Phase I work is to develop low viscosity insulation systems with high bond and shear strength and excellent shear fatigue performance. These systems will utilize a novel toughening system that, in contrast to conventional tougheners, offers a significant reduction in resin viscosity in addition to offering comparable or improved toughening and improved shear strength. These resin systems will be demonstrated in subscale conductor assemblies designed to represent structures typical of those used in magnets for fusion energy systems. The overall goal of this proposed Phase I program is to address the need for low viscosity electrical insulation resins that enable insulations with high shear strength and excellent shear fatigue performance. In Phase I, we will incorporate a novel toughening additive that has been shown to improve resin bonding and shear performance while simultaneously improving the processability of the resin by significantly lowering the viscosity. Electrical and mechanical performance of the resulting systems at both the coupon scale and in subscale conductor assemblies will be demonstrated. Radiation stability will also be evaluated. In addition to benefitting fusion energy and high energy physics applications, the proposed work will benefit several segments of the U.S. economy. These include medical imaging, scientific instruments, transportation, and defense. Specific examples include superconducting magnets for Magnetic Resonance Imaging and Nuclear Magnetic Resonance systems.

* Information listed above is at the time of submission. *

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