Relationship between Relative Viscosity and Volume Concentration of Stable Suspensions of Spherical Particles

Oliver, Dana; Ward, Stacey G.

doi:10.1038/171396b0

Cited by 44 publications

(9 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As observed, first, by Oliver and Ward (1953) on empirical grounds, a much better agreement with data (up to / = 0.18 À 0.20) is provided by the formula Wong and Bollampally (1999) for silicon particles in epoxy (k 0 = 0.195 W/mK, k 1 = 1.5 W/mK). The inset shows Jeffrey's result for the coefficient at / 2 .…”

Section: Introductionmentioning

confidence: 51%

See 1 more Smart Citation

Effective properties of heterogeneous materials: Proper application of the non-interaction and the “dilute limit” approximations

Sevostianov

Kachanov

2012

International Journal of Engineering Science

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 51%

“…It starts to noticeably disagree with experimental data at rather low volume fractions (Ford, 1960;Oliver & Ward, 1953). Also, as noted by Abedian and Kachanov (2010), it violates the rigorous HS bounds (more exactly, their extension from elastic materials to Newtonian fluids, see, for example, Christensen, 2005) at all values of /.…”

Section: Introductionmentioning

confidence: 78%

Effective properties of heterogeneous materials: Proper application of the non-interaction and the “dilute limit” approximations

Sevostianov

Kachanov

2012

International Journal of Engineering Science

View full text Add to dashboard Cite

“…To improve the fit to experimental data, one can include higher order terms in eq 1 or use alternative expressions, 47 for example the equation of Oliver and Ward for the viscosity of a dispersion of spheres 48 where a is a constant. However, the problem with these expressions is neglect of the polymer in the interstitial regions at the particle interface.…”

Section: Resultsmentioning

confidence: 99%

Effect of Silica Nanoparticles on the Local Segmental Dynamics in Poly(vinyl acetate)

et al. 2008

View full text Add to dashboard Cite

The effect of nanosized silica particles on the properties of poly(vinyl acetate) (PVAc) was investigated for a range of silica concentrations encompassing the percolation threshold. The quantity of polymer adsorbed to the particles ("bound rubber") increased systematically with silica content and was roughly equal to the quantity shielded from shear stresses ("occluded rubber"). This bound and occluded polymer attained a level of ∼12% at a silica volume content of 28%; nevertheless, the glass transition properties of the PVAc, including the glass transition temperature, local segmental relaxation function and relaxation times, and the changes in thermal expansion coefficient and heat capacity at T g , were unaffected by the interfacial material. That is, there is no indication that the local segmental dynamics of the chains adjacent to silica particles differ from the motions of the bulk chains. Interestingly, the volume sensitivity of the segmental dynamics, as determined from the scaling exponent γ in the relation T g ∼ V g -γ in which V g is the specific volume at the glass transition, becomes stronger with increasing silica concentration. Moreover, this dependence of γ increases abruptly at the filler percolation threshold. The implication of this result and possible directions for new research are considered.

show abstract

“…Oliver and Ward (198) used it for stable suspensions of rigid spheres and found validity up to c = 0. …”

Section: Fluidity Progression Formulamentioning

confidence: 97%

Relative viscosity and concentration

Rutgers¹

1962

Rheol Acta

267

View full text Add to dashboard Cite

Relationship between Relative Viscosity and Volume Concentration of Stable Suspensions of Spherical Particles

Cited by 44 publications

References 4 publications

Effective properties of heterogeneous materials: Proper application of the non-interaction and the “dilute limit” approximations

Effective properties of heterogeneous materials: Proper application of the non-interaction and the “dilute limit” approximations

Effect of Silica Nanoparticles on the Local Segmental Dynamics in Poly(vinyl acetate)

Relative viscosity and concentration

Contact Info

Product

Resources

About