SUMMARY OF THE SIXTH MEETING OF THE REFRACTORY COMPOSITES WORKING GROUP
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 24, 1962
- Accession Number
- AD0287029
Entities
People
- D.j. Maykuth
- W.a. Gibeaut
Organizations
- Battelle Memorial Institute