TY - RPRT TI - ARPA-NBS program of research on high temperature materials and laser materials : reporting period July 1 to December 31, 1970 AU - Bennett, HS AU - Franklin, AD PY - 1971 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS TN 574 DO - 10.6028/NBS.TN.574 ER -