Processing strategies for niobium sheet used in advanced superconducting particle accelerator cavities Academic Article uri icon

abstract

  • Ultra-high-purity niobium sheet is used to fabricate radio frequency cavities for use in future linear accelerators. The complexity of the shapes requires the electron-beam welding of deep-drawn components, but difficulties with inconsistent formability, springback, and surface roughness have been traced to non-uniform microstructures and texture gradients that are common commercial niobium sheet. Two approaches under study to overcome these problems are the development of fine-grained favorably textured polycrystalline sheet, and the use of a properly of oriented and nearly, single-crystals sheet to form pieces of the cavity. Both approaches show promise but need further work.

author list (cited authors)

  • Baars, D., Bieler, T. R., Hartwig, K. T., Jiang, H., Compton, C., & Grimm, T. L.

citation count

  • 1

publication date

  • June 2007

published in

  • JOM  Journal