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Laminated granules for the production of magnesial oxide refractories

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Refractories Aims and scope

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Conclusions

It is shown that it is possible to produce strong granules of a laminated structure based on dense periclase grains and active finely dispersed materials. The optimum production parameters have been determined. Some features of the structure and phase composition of the laminated granules obtained on the basis of periclase materials activated by additions of ZrO2, A12O3, La2O3, and mixtures of these are described.

It is established that a characteristic feature of the structure of laminated granules is the formation on the surface layer of minerals whose presence can intensify the sintering of the masses and consequently direct the structure-formation processes in the production of an industrial ceramic.

The accumulation of industrial experience has shown that on the basis of laminated granules it is possible to make periclase articles with an open porosity ≥60%. By comparison with articles made from granules of a uniform structure their ultimate compressive strength and thermal-shock resistance is double.

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Literature cited

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Authors and Affiliations

  1. Institute of Metallurgy and Ore-Dressing, Academy of Sciences of the Kazakh SSR, Kazakh SSR

    A. Kh. Akishev & P. N. Babin

Authors
  1. A. Kh. Akishev
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  2. P. N. Babin
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Additional information

Translated from Ogneupory, No. 10, pp. 52–56, October, 1981.

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Akishev, A.K., Babin, P.N. Laminated granules for the production of magnesial oxide refractories. Refractories 22, 536–540 (1981). https://doi.org/10.1007/BF01406899

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  • DOI: https://doi.org/10.1007/BF01406899

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