Conclusions
Stabilization of the maximum concentrated quartz glass suspensions exhibiting thixotropicdilatant flow is characterized by the existence of an optimum duration of the process; coagulation of the system occurs on exceeding it.
With respect to the effect of decreasing the viscosity and the porosity of the castings, additional concentration of HCBS is comparable to their stabilization by mixing.
Aging of the stabilized suspensions leads to a significant change in the rheological properties determined during subsequent (after aging) additional stabilization. The stability of the suspensions increases significantly during re-aging.
The principle of rheotechnological correspondence (the principle of RTC) was developed for the first time. It states that the technological processes of obtaining and using HCBS must be carried out accordinf to the rheological features of the specific systems and that the properties of HCBS can be changed effectively in the desired direction by varying the conditions and the parameters of the processes.
The relative concentration of the solid phase and the content of the kinetically free liquid\(C_{W_k }\) were identified as the main criteria combining the rheological, the colloid(al)-chemical, and the technological features of the processes. The universal applicability of the proposed criteria was demonstrated.
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Translated from Ogneupory, No. 6, pp. 6–13, June, 1988.
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Pivinskii, Y.E. Highly concentrated ceramic binder suspensions. stabilization, rheological properties, and the principle of rheotechnological correspondence. Refractories 29, 335–342 (1988). https://doi.org/10.1007/BF01293375
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DOI: https://doi.org/10.1007/BF01293375