INTERMEDIATE-TEMPERATURE OXIDATION OF BERYLLIDES. Quarterly Progress Report

Technical Report · Wed Jun 12 04:00:00 EDT 1963

OSTI ID:4687486

Perkins, F C

The oxidation characteristics of aluminum-containing modified ZrBe/sub 13/, Zr/sub 2/Be/sub 17/, NbBe/sub 12/, and Nb/sub 2/Be/sub 17 / were studied in the temperature range 650 to 1000 deg C. The oxidation resistances of the modified beryllides in the intermediate temperature range (between 700 and 1000 deg C) with one exception were greatly superior to those of the unmodified materials. The breakaway phenomenon was exhibited only in the instance of ZrBe/ sub 13/ at 871 deg C in which specimen preparation was a factor. Modified Zr/sub 2/Be/sub 17/ and Nb/sub 2/Be/sub 17/ tende d to oxidize more severely at 1093 deg C than the corresponding Al-free materials. X-ray analysis of the modified beryllides after oxidation indicated some differences in the products of oxidation as compared to the normal or unmodified beryllide materiais. The principal difference was the appearance of an unknown phase that was detected consistently in almost all of the zirconium beryllide specimens. In all instances BeO was the principal oxide present on the modified beryllides. (P.C.H.)

• Research Organization: Denver. Univ. Denver Research Inst.
• NSA Number: NSA-17-027781
• OSTI ID: 4687486
• Report Number(s): DRI-2105
• Country of Publication: United States
• Language: English

Related Subjects

ALUMINUM
BERYLLIUM ALLOYS
BERYLLIUM OXIDES
INTERMETALLIC COMPOUNDS
METALS, CERAMICS, AND OTHER MATERIALS
NIOBIUM ALLOYS
OXIDATION
PREPARATION
REPORT
TEMPERATURE
X RADIATION
ZIRCONIUM ALLOYS