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6768600 
Journal Article 
Effect of side surface condition on the strength of optical glass ceramic under biaxial compression 
Rodichev, YM; Gaevskaya, LR; Stepchenko, VL; Okhrimenko, GM 
1989 
1 
Strength of Materials
ISSN: 0039-2316
EISSN: 1573-9325 
21 
7 
923-927 
INSPEC:3718230 
It has been established that the strength of optical glass ceramic SO-115M, with the height of side-surface microroughness reduced and also after etching in hydrofluoric acid, under biaxial compression conditions increases from 20 to 45%. The limiting maximum values of ultimate strength are achieved with principal stress ratios of 0.5leskm<1, which point to the promising nature of this treatment in the care of creating cylindrical and spherical shells intended for operation under conditions of external pressure.