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Features of the thermophysical properties of a highly concentrated ceramic binder suspension-base unfired quartz ceramic

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Refractories Aims and scope

Conclusions

A detailed study was made of the thermophysical properties (thermal expansion and thermal conductivity and diffusivity) of unfired quartz ceramic.

The important practical effects were summarized and explained

  • the disappearance or smoothing on the dilatometric curves of the phase transition in repeated heating of castings of quartz ceramic containing impurities of the crystalline modifications of silica. Similar results were obtained after hydrothermal treatment. This effect is related to the formation of damping microgaps between the cristobalite particles and the matrix after heat treatment;

  • a qualitative difference in the temperature relationship of thermal conductivity of unfired and fired quartz ceramic. The difference is related to breaking down of the colloidal binder in heating of the unfired ceramic.

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Authors and Affiliations

  1. All-Union Refractory Institute, USSR

    T. I. Litovskaya, Yu. E. Pivinskii, F. S. Kaplan, E. Ya. Litovskii, O. N. Samarina & M. M. Kugauda

Authors
  1. T. I. Litovskaya
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  2. Yu. E. Pivinskii
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  3. F. S. Kaplan
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  4. E. Ya. Litovskii
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  5. O. N. Samarina
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  6. M. M. Kugauda
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Additional information

Translated from Ogneupory, No. 11, pp. 41–45, November, 1989.

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Litovskaya, T.I., Pivinskii, Y.E., Kaplan, F.S. et al. Features of the thermophysical properties of a highly concentrated ceramic binder suspension-base unfired quartz ceramic. Refractories 30, 701–705 (1989). https://doi.org/10.1007/BF01288276

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  • DOI: https://doi.org/10.1007/BF01288276

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