Speaker
Description
We have been investigating whether mixing organic olefin-based thermosetting dicyclopentadiene (DCP) resin, commercially available as TELENE by RIMTEC Corporation in Japan, with high heat capacity ceramic powders, increases the specific heat (Cp) of impregnated Nb3Sn superconducting magnets. This is ongoing as the international scientific collaboration between U.S. and Japan. Using a high Cp resin as impregnation material for Nb3Sn magnets is expected to considerably increase the specific heat of the superconducting coil package when compared with standard impregnation epoxies (CTD-101k). This novel technology will contribute to reducing Nb3Sn superconducting magnet training at a minimum cost. The high Cp resins in this study were fabricated by a combination of a ceramics powder filler and TELENE. TELENE is typically cured by the use of an additive, which is the ruthenium complex. The curing time is controlled by the amount of retardant. The powder filler is selected among high heat capacity ceramics, such as Gd2O3, Gd2O2S, and HoCu2. These powder fillers are mixed with the TELENE by using a planetary mixer. The viscosity, heat capacity, thermal conductivity, and other physical properties of TELENE with powder fillers were measured in this study. In addition, we investigated the effect on the bending mechanical property of those resins after gamma-ray irradiation. Moreover, we used TELENE to impregnate the Nb3Sn short undulator magnet made at Argonne National Laboratory. These results will be also reported in this paper
A part of this study is supported by U.S.-Japan Science and Technology Cooperation Program in High Energy Physics operated by MEXT in Japan and DOE in U.S.
