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Slag-resistant products made from stabilized ZrO2

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Refractories Aims and scope

Conclusions

The resistance of zirconia refractories to the action of acid slags is determined by the interaction between the added stabilizer and the silica component of the slag and by the rate of formation of the corresponding silicates. Of those materials studied, the most resistant of the action of the more acid slags is ZrO2 stabilized by Y2O3.

The rate of wear of the articles made from stabilized zirconia under the action of the more basic of the melts we studied is determined by the diffusion of Ca2+ into the structure of ZrO2 forming CaZrO3 which leads to the articles becoming less dense. The interaction between the stabilized ZrO2 and the basic industrial slag, moreover, is accompanied by the intense dissolution of the refractory in the slag as a result of the formation of low-melting melts at the slag-refractory interface.

Thus, zirconia refractories have an excellent resistance to the action of an acid multicomponent slag and are intensively damaged by basic slags.

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Literature cited

  1. A. S. Frenkel', G. I. Antonov, A. G. Karaulov, et al., in: Scientific Proceedings of the Ukrainian Scientific-Research Institute of Refractories [in Russian], No. 13 (1970).

  2. A. V. Belyakov, D. N. Poluboyarinov, and M. A. Mal'kov, Ogneupory, No. 2 (1974).

  3. V. I. Strakhov, A. E. Zhukovskaya, G. G. Sergeev, and S. P. Shmitt-Fogelevich, Ogneupory, No. 11 (1974).

  4. A. A. Kortel', L. L. Taras'yan, V. I. Strakhov, and A. E. Zhukovskaya, Production of Refractories: Selection of Industrial Programs [in Russian], No. 4 (1975).

  5. A. E. Zhukovskaya, V. I. Strakhov, and L. L. Taras'yan, in: Proceedings of Lensovet Leningrad Technological Institute [in Russian], Nos. I and II (1975).

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Authors and Affiliations

  1. Lensovet Leningrad Technological Institute, USSR

    V. I. Strakhov & A. E. Zhukovskaya

  2. All-Union Institute of Refractories, USSR

    V. I. Strakhov & A. E. Zhukovskaya

Authors
  1. V. I. Strakhov
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  2. A. E. Zhukovskaya
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Translated from Ogneupory, No. 3, pp. 54–57, March, 1979.

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Strakhov, V.I., Zhukovskaya, A.E. Slag-resistant products made from stabilized ZrO2 . Refractories 20, 184–188 (1979). https://doi.org/10.1007/BF01293041

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  • DOI: https://doi.org/10.1007/BF01293041

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