Rheology in the technology of ceramics and refractories. 2. Dispersed systems, methods of their investigation and evaluation of rheological properties

Methods of measuring the rheological properties of compounds for extrusion

“…6). Only shear deformations develop in cylinder -cylinder, hemisphere -hemisphere, and conecone rheometers; shear together with compression is observed in disk -disk, disk -ring, and disk -cone rheometers [7,12]. The cone -cone and disk -disk measuring pairs are characterized by a nonuniform stress field; all others are characterized by a uniform stress field.…”

“…capillary viscosimetry (measurement of the flow time of a material through a capillary with a known cross section) [4,12,14];…”

“…Likewise, instruments are divided into instruments with uniform and nonuniform stress field. The former include rotational viscometers and instruments with translation of the working organ; the latter into capillary viscosimeters and instruments based on the method of vibrations [7,12].…”

Methods Used for the Compaction and Molding of Ceramic Matrix Composites Reinforced with Carbon Nanotubes

“…Typically, a plastic molding mass contains 30-60 vol.% of a liquid binder in addition to a ceramic-forming powder. Important issues related to rheology of disperse systems as applied to ceramic technology have been discussed by many authors [94][95][96][97][98][99][100][101][102][103]. The list of practical binders includes aqueous solutions of polymers (in particular, ionogenic cellulose derivatives, alginates, and acrylates) or diphilic molecules (e.g., polyvinyl alcohol or diethylene glycol) [104,105], highly viscous organic liquids (either polymers or monomers or their solutions in organic solvents polymer) [106,107].…”