TY - RPRT TI - Report of operating experiences in coal conversion plants : material of construction- Incoloy 800 AU - Willard, William A AU - Smith, John H PY - 1977 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 77-1285 DO - 10.6028/NBS.IR.77-1285 ER -