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Latest News
Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
Mike A. Salazar, Robert Hermes, Robert W. Margevicius
Fusion Science and Technology | Volume 35 | Number 2 | March 1999 | Pages 119-122
Technical Paper | doi.org/10.13182/FST99-A11963913
Articles are hosted by Taylor and Francis Online.
Hollow spherical targets are frequently fabricated by the joining of two adhesively bonded hemispheres. Other materials used for Intertial Confinement Fusion (ICF) experiments, including aluminum, stainless steel, sapphire, and various plastics, are also bonded using adhesives.
This paper presents the mechanical testing results of Dexter-Hysol EA9330. The base metals were either an aluminum 6061-T6 or beryllium S200D. The uniaxial tensile (from room to liquid helium temperatures), lap shear, and creep properties of the adhesive under consideration were evaluated. We found that the highest lap shear strength was obtained when the test panel was assembled with fresh adhesive (time = 0 min.) and degraded to about 77% of that value in 120 minutes. Butt tensile strength increased from about 8 ksi (1 ksi = 1000 lbs/in2 = 6.90 MPa) at room temperature to about 19 ksi at −269°C for both the aluminum and beryllium base metals. The lap shear strength decreased from about 5 ksi at room temperature to about 3 ksi at cryogenic temperatures. Creep tests in both butt tensile and lap shear configurations demonstrated a very narrow stress level for which the time to failure decreased from over 720 hours to less than 20.
Finally, we found that the surface treatment is critical to achieving the highest strength adhesive bonds. Some inconclusive but interesting test data is presented opening the way for further investigation.
