Abstract
To check the development of nonsymmetry in bending creep tests an Al2O3 ceramic containing a glass phase is investigated in interrupted creep tests. The symmetric part of the strain is measured by the deflection and the nonsymmetric part is obtained by length measurements between two Knoop indentations situated at the centerline of bending bars. It is observed that nonsymmetry in creep occurs not only in the secondary creep range but also in the primary range.
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