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.
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Translated from Poroshkovaya Metallurgiya, No. 11(299), pp. 56–59, November, 1987.
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Gogotsi, Y.G., Kotlyar, D.A., Kresanov, V.S. et al. High-temperature oxidation of sintered lanthanum hexaboride. Powder Metall Met Ceram 26, 914–917 (1987). https://doi.org/10.1007/BF00794111
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DOI: https://doi.org/10.1007/BF00794111