Accession Number : AD0432383


Title :   ANALYSIS OF ALUMINA CRUCIBLE FAILURES IN THE PRESENCE OF NICKEL-COPPER-IRON ALLOYS.


Descriptive Note : Rept. for Apr 63-Sep 63,


Corporate Author : RESEARCH AND TECHNOLOGY DIV BOLLING AFB D C


Personal Author(s) : Patton,Robert


Report Date : Feb 1964


Pagination or Media Count : 34


Abstract : An unusual alumina crucible failure is analyzed and a mechanism postulated to account for the inordinately severe corrosion occurring near a localized region of high stress. The binary phase diagram of iron and oxygen is reviewed along with the pseudo binary of FeO-Al2O3 and the ternary phase relationship of Fe-Al-O at 1350 C. These data, along with other information, are used to suggest a reaction similar to stress corrosion in metals. (Author)


Descriptors :   *CRUCIBLES , *ALUMINUM COMPOUNDS , *STRESSES , FAILURE(MECHANICS) , OXIDES , CORROSION , MELTING , NICKEL ALLOYS , COPPER ALLOYS , IRON ALLOYS , IRON COMPOUNDS , OXYGEN


Distribution Statement : APPROVED FOR PUBLIC RELEASE