Accession Number : AD0664890

Title :   MECHANICAL DETERIORATION OF MGO BY WATER VAPOR.

Descriptive Note : Rept. for Dec 65-Jun 67,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Janowski,K. R. ; Rossi,R. C.

Report Date : NOV 1967

Pagination or Media Count : 30

Abstract : The effect of exposure to the laboratory atmosphere on the fracture stress and Young's modulus of polycrystalline magnesium oxide was studied. The observed degradation of mechanical properties was attributed to chemical attack by atmospheric water vapor. The rate and extent of degradation were bound to be dependent upon the amount and nature of the porosity present within the specimens. (Author)

Descriptors :   (*MAGNESIUM OXIDES, DEGRADATION), WATER VAPOR, MODULUS OF ELASTICITY, STRESSES, FRACTURE(MECHANICS), POROSITY

Subject Categories : Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE