Computational Investigation Into The Diffusion Bonding of 316L Stainless Steel with Boron Carbide For Radiation Shielding in Nuclear Thermal Propulsion Applications
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Date
2022-05
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The Ohio State University
Abstract
Diffusion bonding (DB) is a solid-state welding process in which two or more materials are bonded together into one seamless structure under high temperature, vacuum, and pressure conditions without requiring any external fixations. This process allows for the creation of complex structures impregnated with substances that possess qualities comparable to their base components—at the same time, producing negligible adverse effects on the final product's material properties. For example, design limitations in radiation shielding for spacecraft commonly require the structures to possess low weight and exceptional material properties when produced. The effort put forth in this investigation has resulted in a first-of-its-kind, multilayer radiation shielding structure composed of 316L stainless steel (ss) and Boron Carbide (B4C). In addition to this, this study defines the base material properties of said structure through computational and a parallel experimental study. Utilizing practical methods such as optical microscopy and computational particle transport simulation software such as the "Transport and Range of Ions in Matter" (TRIM) and Geant4 to determine the material bonding regions and the effects radiation has on the shielding structure.
Description
1st in Engineering Technology in the 27th Denman Undergraduate Research Forum
3rd Place AIAA Region lll Conference Year 2022
3rd Place AIAA Region lll Conference Year 2022
Keywords
Nuclear Thermal Propulsion, Aerospace Engineering, Diffusion Bonding, Solid State, Materials, Radiation Shielding