Abstract
A liquid-epoxy resin system with high resistance to 4-K reactor radiation (neutron plus gamma) has been developed that meets all ITER and BPX requirements: pot life longer than 12 h at ambient temperatures; viscosity less than 1000 cP over its entire pot life; cure below 150°C; low shrinkage; no volatiles upon curing; excellent penetration; and good wetting of fibers, stainless steels, and nickel-based steels.
The strength of the epoxy resin system, CTD-101, was tested with and without S-2 Glass®* fiber reinforcement at 295, 76 and 4 K. Specimens were then irradiated at two dose levels (2.9 × 107 and 1.6 × 108 Gy) at temperatures below 6 K.
Virtually no deterioration in interlaminar shear strength at 76 K was observed after the lower dose level, which is the end-of-life dose level for ITER. After the higher dose level, the material had degraded, but its strength was still well above the BPX requirement (14 MPa in shear) at the end-of-life dose level of 1 × 108 Gy.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Insulators for Fusion Applications, IAEA-TECDOC-417. International Atomic Energy Agency, Vienna (1987).
M. B. Kasen and N. A. Munshi, Cost-Effective Techniques for Development of Radiation-Resistant Organic Insulators for Superconducting Magnets, SBIR Contract No. DE-ACO2–87ER80487 (1987).
N. A. Munshi, Effect of Polymer Additives and Residual Elements on the Cryogenic Performance and Radiation Resistance of Insulators for High-Field Magnets, SBIR Contract No. DE-FG02–90ER81073 (1990).
M. B. Kasen and N. A. Munshi, Cost-Effective Techniques for Development of Radiation-Resistant Organic Insulators for Superconducting Magnets, SBIR Contract No. DE-ACO2–87ER80487, Final Report (1991).
S. N. A. Munshi and H. W. Weber, Reactor neutron and gamma irradiation of various composite materials, Advances in Cryogenic Engineering - Materials, vol. 38,R. P. Reed and F. R. Fickett, eds., Plenum, New York, submitted for publication.
H. Gerstenberg and W. Gläser, Neutron irradiations at temperatures below 6 K at the Munich Research Reactor (FRM), Fakultät für Physik E21, Technische Universität München, Garching, FRG (1990).
L. T. Summers (Lawrence Livermore National Laboratory), ITER design allowables, paper presented at Radiation Tolerant Magnet Insulation Workshop, Boulder, Colorado, June 1990.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1992 Springer Science+Business Media New York
About this chapter
Cite this chapter
Munshi, N.A. (1992). A Radiation-Resistant Epoxy Resin System for Toroidal Field and Other Superconducting Coil Fabrication. In: Fickett, F.R., Reed, R.P. (eds) Materials. Advances in Cryogenic Engineering, vol 38. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9050-4_32
Download citation
DOI: https://doi.org/10.1007/978-1-4757-9050-4_32
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4757-9052-8
Online ISBN: 978-1-4757-9050-4
eBook Packages: Springer Book Archive