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Translated from Poroshkovaya Metallurgiya, No. 11(191), pp. 55–59, November, 1978.
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Sleptsov, V.M., Shcherbina, O.D., Stignyak, V.A. et al. Microstructure and strength of silicon nitride with additions of rare-earth oxides. Powder Metall Met Ceram 17, 861–864 (1978). https://doi.org/10.1007/BF00792455
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DOI: https://doi.org/10.1007/BF00792455