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EFFECT OF AQUEOUS SOLUTIONS ON THE STRENGTH OF 22khs CERAMICS |
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| Authors: | Barinov S. M. Ivanov N. V. Kurepin A. V. Ballokova B. Hvizdosh P. Rudnajova E. |
| Affiliation: | 1. Institute of Physicochemical Problems of Ceramic Materials of the, Russian Academy of Sciences,, Moscow,, Russia. 2. Institute for Materials Research, Slovak Academy of Sciences,, Bratislava,, Slovak Republic. |
| Abstract: | Ceramics based on alumina undergo delayed failure in aqueous solutions as a result of stress corrosion. The effect of the loading rate on the strength of the 22KhS ceramics in aqueous solutions with pH ranging from 1 to 12 is studied. It is shown that acid and alkaline media diminish the resistance of the ceramics to delayed failure substantially. The parameters of statistical distribution of the strength also depend on the characteristics of the media. It is shown that the resistance of the 22KhS ceramics to delayed failure can be enhanced by preliminary chemical treatment. |
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