TY - RPRT TI - Piston with insulating air gap formed by additive manufacturing AU - Kelleher, Jordan E. AU - Kocher, Lyle E. AU - Doig, Dwight A. AU - Boas, Brett A. PY - 2021 UR - https://www.osti.gov/biblio/1859966 ID - 1859966 ER -