Accession Number:

ADA099691

Title:

Aerodynamic Levitation Reactor Studies of Fluorine Reactions with Refractory Ceramics

Descriptive Note:

Final rept. Oct 1977-Sep 1980

Corporate Author:

YALE UNIV NEW HAVEN CT HIGH TEMPERATURE CHEMICAL REACTION ENGINEERING LAB

Personal Author(s):

Report Date:

1981-05-01

Pagination or Media Count:

23.0

Abstract:

The present work has placed emphasis on the detailed kinetic and mechanistic study of selected fluorineceramic reactions. The results of our program include work on fluorine reaction with Al2O3 38, 39, B4C 33, 37, Re 61, 64, Gd 61, 65, LaB6 37, 50, 61, 63 and LaB6-C, LaB6-MoSi2 composites 61, 63. One application of materials resistant to fluorine attack at high temperature is the HF chemical laser. Nickel and nickel alloys are useful in fluorine to ca. 1000K, but higher temperatures are required in CW HF lasers. Since the number of candidate materials decrease and fluorine corrosion rates increase with temperature it is useful to set upper bounds on the temperatures required for this application. Our analysis of this problem 61, 66 is presented. Given the temperature range of interest, the mechanisms by which fluorine gasifies solids limit the number of possible fluorine resistant materials.

Subject Categories:

  • Inorganic Chemistry
  • Physical Chemistry
  • Ceramics, Refractories and Glass

Distribution Statement:

APPROVED FOR PUBLIC RELEASE