TY - RPRT TI - Wave speeds in single-crystal and polycrystalline copper AU - Thomas, Sarah A. AU - Hixson, Robert S. AU - Hawkins, M. Cameron AU - Strand, Oliver T. PY - 2020 DO - 10.1016/j.ijimpeng.2020.103506 UR - https://www.osti.gov/biblio/1598755 ID - 1598755 ER -