High-temperature oxidation of sintered lanthanum hexaboride |
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Authors: | Yu G Gogotsi D A Kotlyar V S Kresanov V V Morozov |
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Affiliation: | (1) Institute of Problems of Materials Science, Academy of Sciences of the Ukrainian SSR, Ukraine;(2) Kiev Polytechnic Institute, USSR |
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Abstract: | Conclusions The intense interaction between sintered LaB6 with atmospheric oxygen starts, at temperatures close to 700°C, The mechanism of the process and composition of the interaction products change depending on temperature. Oxidation resistance of LaB6 up to 1200°C is satisfactory. At higher temperatures, catastrophic oxidation of the material caused by active evaporation of boron oxide takes place.Translated from Poroshkovaya Metallurgiya, No. 11(299), pp. 56–59, November, 1987. |
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