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Highly concentrated ceramic binder suspensions. Colloidal component and binding (bonding) properties

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Conclusions

We carried out depletion and enrichment (concentration) of the original suspension of quartz sand and obtained suspensions and castings based on them by varying C ndcc in the 0.01–2.22% range with respect to the total weight of the solid phase.

The colloidal component is characterized by a specific surface Ssp=260 m2/g (average superficial particle diameter d sav =9.5 nm). Its content determines Ssp of the suspensions to a large extent; Ssp was varied in the 0.96–8.30 m2/g range by varying C ndcc .

The most significant effect of C ndcc on the strength properties of the castings was established. Depending on C ndcc , the parameter σbnd changes by 60 times (from 0.1 up to 6.0 N/mm2), the porosity changes from 10.7 up to 18%, and the loss on ignition changes from 0.04 up to 0.35%.

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Authors and Affiliations

  1. All-Union Institute of Refractories (VIO), USSR

    Yu. E. Pivinskii, F. S. Kaplan, S. G. Semikova & M. A. Trubitsyn

  2. Belgorodsk Technological Institute of Building Materials, USSR

    Yu. E. Pivinskii, F. S. Kaplan, S. G. Semikova & M. A. Trubitsyn

Authors
  1. Yu. E. Pivinskii
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  2. F. S. Kaplan
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  3. S. G. Semikova
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  4. M. A. Trubitsyn
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Translated from Ogneupory, No. 2, pp. 13–18, February, 1989.

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Pivinskii, Y.E., Kaplan, F.S., Semikova, S.G. et al. Highly concentrated ceramic binder suspensions. Colloidal component and binding (bonding) properties. Refractories 30, 76–84 (1989). https://doi.org/10.1007/BF01292546

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