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Liquid Interface Diffusion Bonding of FPS Heat Pipes to Core, Phase I

Completed Technology Project

Project Introduction

Peregrine proposes the development of 'Liquid Interface Diffusion' (LID) bonding to be the joining method to provide a homogeneous connection between the heat pipes and cores of Fission Power Systems (FPS). This innovation will create a high strength, high temperature and high integrity (homogeneous) joint between the Hanes 230 alloy comprising the NaK heat pipe wall and U-8Mo core. This homogeneous joint will allow for high efficiency heat transfer from the core to NaK heat pipes with no voids or separations that can act as thermal shunts that will become hot spots/cold spots at the heat exchanging surface that could lead to dead spots, or potential sites for thermal runaway. The creation of a high efficiency joint allows both the core and the heat pipe to both operate at their optimum performance supplying a maximum and balanced thermal load to the hot side of the sterling engines making up the operating component generating electricity within the Fission Power System. More »

Anticipated Benefits

Primary U.S. Work Locations and Key Partners

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Project Duration

Technology Maturity (TRL)

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