Epoxy-based thermally conductive adhesives with effective alumina and boron nitride for superconducting magnet
Source abstract
Abstract
Abstract Heat management is one of the key technologies for reliable and high-performance electric devices. We have developed thermally conductive adhesives based on a commercial thermally conductive epoxy, Stycast 2850FT (S2850), with an additional unfilled resin and boron nitride (BN). The optimal mixing ratio of BN to epoxy resin was 10 wt%, and the thermal conductivity (κ) of this mixture was 1.65 W/m·K at 25 °C, 1.6 times higher than that of S2850. Such enhancement of κ may be attributed to the formation of more thermal conductive paths generated by the effective additives inside the composite adhesive layers, which was confirmed with elemental mapping analysis. Our epoxy-based thermally conductive adhesives with improved κ was then implemented for a superconducting magnet. Because of the enhanced heat dissipation of our composite adhesive, the superconducting magnet showed enhancement of 42.7%, 14.8%, and 76.6% in the cooling rate, the minimum quench energy, and the normal zone propagation velocity in the longitudinal direction at 70% of the current-carrying capacity, respectively, which are important parameters in the operational performance of a superconducting magnet, compared to a coil with S2850.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Thermal properties of materials · Heat Transfer and Optimization · Graphene research and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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