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Classification of refractories in terms of brittleness and the determination of their thermal-shock resistance

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Refractories Aims and scope

Conclusions

All refractory materials are with advantage divided into two groups in terms of the characteristics of their mechanical behavior, viz., brittle refractories for which the degree of brittleness χ=1, and relatively brittle refractories with χ<1. The method and means of determining the strength of refractories should be decided in accordance with the degree of their brittleness.

A criterion is proposed for the resistance of refractories to thermal stresses which takes into account the effective relation between the stresses and deformation.

It was shown that in the case of materials of equal strength, rigidity, and coefficients of linear expansion the thermal-shock resistance is greater for the material with the lower degree of brittleness.

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Authors and Affiliations

  1. Institute of Strength Problems, Academy of Sciences of the Ukrainian SSR, Ukraine

    G. A. Gogotsi & Ya. L. Grushevskii

Authors
  1. G. A. Gogotsi
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  2. Ya. L. Grushevskii
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Translated from Ogneupory, No. 4, pp. 48–52, April, 1978.

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Gogotsi, G.A., Grushevskii, Y.L. Classification of refractories in terms of brittleness and the determination of their thermal-shock resistance. Refractories 19, 248–254 (1978). https://doi.org/10.1007/BF01280494

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