Rheology in manufacturing ceramics and refractories. 7. Polydispersity and dilatancy of HCBS of a mixed composition

Rheology in manufacturing ceramics and refractories. 7. Polydispersity and dilatancy of HCBS of a mixed composition

An example of highly concentrated ceramic suspensions of mullite and quartz sand characterized by a substantial dilatancy is used to show that the introduction of a highly disperse suspension of molten quartz into their composition makes it possible to diminish substantially or eliminate the effect...

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Bibliographic Details
Published in:Refractories and industrial ceramics Vol. 39; no. 11-12; pp. 415 - 418
Main Authors: PIVINSKII, Yu. E, DOROGANOV, E. A
Format: Journal Article
Language:English
Published: New York, NY Plenum 01-11-1998
Springer Nature B.V
Subjects:
Ceramics
Composition effects
Dilatancy
Dispersions
Mullite
Polydispersity
Quartz
Refractories
Rheological properties
Rheology
Sand
Solid phases
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Summary:An example of highly concentrated ceramic suspensions of mullite and quartz sand characterized by a substantial dilatancy is used to show that the introduction of a highly disperse suspension of molten quartz into their composition makes it possible to diminish substantially or eliminate the effect of dilatant flow even at a volume fraction of the solid phaseCv = 0.71. The latter fact is connected with the growth of the parameter of polydispersity of solid-phase particles, which causes an increase in the volume of the kinetically free dispersion medium in the process of its deformation given thatCv of the dispersion system is comparable.
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ISSN:1083-4877
1573-9139
DOI:10.1007/bf02771347