Abstract
A technique of yield stress investigation based upon the combined use of two devices (an applied stress rheometer and an instrument for measuring the propagation velocity of small amplitude, torsional shear waves) is described. Investigations into the low shear rate rheological properties of illitic suspensions are reported for shear rates, typically, in the range 10−4— 10−1 s−1 under applied stresses in the range 0.01 — 10 Nm−2 and involving shear strains between 10−1 and 10−4. Results are presented which demonstrate that the technique does not invoke the excessive structural disruption of material associated with applied shear rate based methods (direct and otherwise) and the widely encountered problem of wall slip at the surface of rotational measuring devices is avoided using miniature vane geometries. Results are compared with those obtained using smooth-walled cyclindrical measuring devices in both applied stress and applied shear rate instruments.
Yield measurements are considered in relation to the structural properties of the undisturbed material state and shear moduli obtained by studying the propagation of small amplitude (10−5 rad), high frequency (~ 300 Hz) torsional shear waves through the test materials are reported. Experimental techniques and instrument modifications to permit these measurements are described.
Similar content being viewed by others
References
Papenhuizen J (1971) Rheol Acta 11:73
Dzuy NQ, Boger DV (1985) J Rheology 29:335
Davies SS, Deer JJ, Warburton BJ (1968) Scientific Inst J Phys E Ser 2(1):993
Gularte RC, Kelly WE, Nacci VA (1979) Mar Tech Soc, 15th Ann Conf (Proc):251
Van Wazer JR, Lyons JW, Kim KY, Colwell RE (1963) Viscosity and Flow Measurement. Interscience, London
Van den Tempel MJ (1961) J Coll Sci 16:284
Smith TL, Bruce CA (1979) J Coll Interface Sci 72:13
Warburton BJ, Davies SS (1969) Rheol Acta 8:205
Davies SS (1971) Rheol Acta 10:28
Groves MJ, Ahmad AB (1976) Rheol Acta 15:501
Asada T, Marahushi Y, Onogi S (1974) Abstracts 5th Intern Liquid Crystal Conf (Stockholm) 33
Barnes HA, Walters K (1985) Rheol Acta 24:323
Keentok M (1982) Rheol Acta 21:325
Whorlow RW (1980) Rheological Techniques (Ellis Horwood, Chichester)
Schoukens I, Mewis J (1979) J Rheology 22:381
Ramsay JDF (1986) J Coll Interface Sci 109:2
ASTM Standards (1975) Pt 19, D2573 - 72:321
Russel JL (1936) Proc Roy Soc London 154(A):550
Krieger IM, Equiluz M (1976) Trans Soc Rheol 20:1
Zosel A (1982) Rheol Acta 21:72
Payne AR (1964) J Coll Sci 19:744
Van den Tempel M (1958) Rheol Acta 1:115
Dzuy NQ, Boger DV (1983) J Rheology 27:321
Cheng D-CH (1971) J Phys E Sci Inst 4:693
Joye DD, Poehlein GW (1971) Trans Soc Rheol 15:51
Hutton JF (1975) Rheol Acta 14:979
Sherman P (1970) Industrial Rheology, Academic Press, London
Cheng, D-CH, Richmond RA (1978) Rheol Acta 17:446
Billingham EW (1960) Proc Phys Soc 76:127
Van de Ven TGM, Hunter RJ (1977) Rheol Acta 16:534
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
James, A.E., Williams, D.J.A. & Williams, P.R. Direct measurement of static yield properties of cohesive suspensions. Rheol Acta 26, 437–446 (1987). https://doi.org/10.1007/BF01333844
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF01333844