Accession Number : AD0657308

Title :   PREPARATION OF DENSE ABLATIVE COMPACTS.

Descriptive Note : Research rept.,

Corporate Author : NAVAL ORDNANCE TEST STATION CHINA LAKE CALIF

Personal Author(s) : Hering,C. A. ; McEwan,W. S.

Report Date : JUN 1967

Pagination or Media Count : 15

Abstract : Attempts were made to fabricate a dense material that when heated would produce gaseous products and possibly a slag. Structural strength was an added requirement. In preliminary work tungsten was dispersed in a carbonate phase. This system was too weak mechanically to permit any evaluation whatsoever. In further experimentation attempts were made (1) to make tungsten the continuous phase by sintering tungsten powder by passage of an electric current through it, and (2) to make a compact bonded by tungsten compounds. Variations of these ideas were tried with only moderate success. (Author)

Descriptors :   (*HEAT SHIELDS, MATERIALS), (*TUNGSTEN, *ABLATION), POWDER METALS, POROUS MATERIALS, CERAMIC MATERIALS, CALCIUM OXIDES, CALCIUM COMPOUNDS, CARBONATES, CERMETS, COMPACTING, SINTERING, BONDING, THERMAL PROPERTIES, MECHANICAL PROPERTIES

Subject Categories : Ceramics, Refractories and Glass
      Miscellaneous Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE