Accession Number : AD0287029

Title :   SUMMARY OF THE SIXTH MEETING OF THE REFRACTORY COMPOSITES WORKING GROUP

Corporate Author : BATTELLE MEMORIAL INST COLUMBUS OHIO DEFENSE METALS INFORMATION CENTER

Personal Author(s) : GIBEAUT,W.A. ; MAYKUTH,D.J.

Report Date : 24 SEP 1962

Pagination or Media Count : 1

Abstract : I NFORMATION ON REFRACTORY COMPOSITES FOR USE ABOVE <%)) F, presented at the Six h Refractory Composites Working Group Meeting in Dayton in June, 1962, is summarized. Protective coatings, insulating ceramics, dispersion strengthening, plasma spraying, high-temperature reactions, and testing techniques were discussed. The timetemperature capabilities of metallic and intermetallic coatings for Va, Nb, Mo, Ta, and W are steadily being increased by improved processing techniques and chemical modification. Insulating ceramics were developed for critical nose-cap and other applications. Structural and thermal stability are reported at 3500 F for Al2O3-base systems and at 4200 F for ZrO2-base systems. Graphite, a refractory material which lacks oxidation resistance, was chemically modified to improve oxidation performance markedly at temperatures up to 4200 F. (Author)

Descriptors :   *CERAMIC MATERIALS, *REFRACTORY COATINGS, *REFRACTORY MATERIALS, ALLOYS, COATINGS, COMPOSITE MATERIALS, FIBERS, FLAME SPRAYING, HIGH TEMPERATURE, METALS, NONDESTRUCTIVE TESTING, PLASMA JETS, ROCKET NOZZLES, SYMPOSIA, ULTRASONIC RADIATION

Distribution Statement : APPROVED FOR PUBLIC RELEASE