TY - GEN AU - F E Brinckman AU - J B Wachtman C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1970-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.333 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1970 TI - Research materials developed under the NBS inorganic materials program: ER -