A new equipment to test elongation thickening of highly concentrated suspensions and comparison of elongational with shear results

J. Laven; J. Nakao

A new equipment to test elongation thickening of highly concentrated suspensions and comparison of elongational with shear results

J. Laven, J. Nakao

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

Abstract

With a newly designed uni-axial elongation equiment, elongation thickening of highly concentrated suspensions was investigated. The equipment can measure the total tensile force and the liquid-phase pressure in the suspension. This allows to analyse all network stresses, i.e. all inter-particle stresses. Fro comparing elongation and shear properties, a rotational shear rehometer was equipped with facilities to simultaneously measure viscosity, liquid-phase pressure and normal force. The critical elongation rate beyond which dilatancy occurs is about a factor 30 lower than the corresponding shear equivalent. Especially in elongation and also in shear, the liquid phase pressure of the suspension decreases beyond a critical range.

Original language	English
Title of host publication	Proceedings of the XIIIth international congress on rheology : Cambridge, UK, 20-25 August 2000
Pages	3-22-3-24
Volume	3
Publication status	Published - 2000
Event	XIIIth International Congress on Rheology - Cambridge, United Kingdom Duration: 20 Aug 2000 → 25 Aug 2000

Conference

Conference	XIIIth International Congress on Rheology
Country/Territory	United Kingdom
City	Cambridge
Period	20/08/00 → 25/08/00

Cite this

@inproceedings{c0e1fdefbafa4bbaa8a7d1c1ce16bb30,

title = "A new equipment to test elongation thickening of highly concentrated suspensions and comparison of elongational with shear results",

abstract = "With a newly designed uni-axial elongation equiment, elongation thickening of highly concentrated suspensions was investigated. The equipment can measure the total tensile force and the liquid-phase pressure in the suspension. This allows to analyse all network stresses, i.e. all inter-particle stresses. Fro comparing elongation and shear properties, a rotational shear rehometer was equipped with facilities to simultaneously measure viscosity, liquid-phase pressure and normal force. The critical elongation rate beyond which dilatancy occurs is about a factor 30 lower than the corresponding shear equivalent. Especially in elongation and also in shear, the liquid phase pressure of the suspension decreases beyond a critical range.",

author = "J. Laven and J. Nakao",

year = "2000",

language = "English",

volume = "3",

pages = "3--22--3--24",

booktitle = "Proceedings of the XIIIth international congress on rheology : Cambridge, UK, 20-25 August 2000",

note = "XIIIth International Congress on Rheology ; Conference date: 20-08-2000 Through 25-08-2000",

}

A new equipment to test elongation thickening of highly concentrated suspensions and comparison of elongational with shear results. / Laven, J.; Nakao, J.
Proceedings of the XIIIth international congress on rheology : Cambridge, UK, 20-25 August 2000. Vol. 3 2000. p. 3-22-3-24.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

TY - GEN

T1 - A new equipment to test elongation thickening of highly concentrated suspensions and comparison of elongational with shear results

AU - Laven, J.

AU - Nakao, J.

PY - 2000

Y1 - 2000

N2 - With a newly designed uni-axial elongation equiment, elongation thickening of highly concentrated suspensions was investigated. The equipment can measure the total tensile force and the liquid-phase pressure in the suspension. This allows to analyse all network stresses, i.e. all inter-particle stresses. Fro comparing elongation and shear properties, a rotational shear rehometer was equipped with facilities to simultaneously measure viscosity, liquid-phase pressure and normal force. The critical elongation rate beyond which dilatancy occurs is about a factor 30 lower than the corresponding shear equivalent. Especially in elongation and also in shear, the liquid phase pressure of the suspension decreases beyond a critical range.

AB - With a newly designed uni-axial elongation equiment, elongation thickening of highly concentrated suspensions was investigated. The equipment can measure the total tensile force and the liquid-phase pressure in the suspension. This allows to analyse all network stresses, i.e. all inter-particle stresses. Fro comparing elongation and shear properties, a rotational shear rehometer was equipped with facilities to simultaneously measure viscosity, liquid-phase pressure and normal force. The critical elongation rate beyond which dilatancy occurs is about a factor 30 lower than the corresponding shear equivalent. Especially in elongation and also in shear, the liquid phase pressure of the suspension decreases beyond a critical range.

M3 - Conference contribution

VL - 3

SP - 3-22-3-24

BT - Proceedings of the XIIIth international congress on rheology : Cambridge, UK, 20-25 August 2000

T2 - XIIIth International Congress on Rheology

Y2 - 20 August 2000 through 25 August 2000

ER -

A new equipment to test elongation thickening of highly concentrated suspensions and comparison of elongational with shear results

Abstract

Conference

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