Compressing some sol-gel materials reduces their stiffness: a textural analysis

[en] The mechanical behaviour of two series of silica and of resorcinol xerogels is analyzed by mercury porosimetry. The data are expressed as pressure-density curves, which enables textural information to be obtained. In particular, it is shown that some of the analyzed samples exhibit a marked lowering of their mechanical stiffness upon compression. This observation is analyzed in terms of the collapse of the sample’s porosity and of the heterogeneity of the microstructure.

Disciplines :

Chemistry
Materials science & engineering

Author, co-author :

Gommes, Cédric ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Génie catalytique

Job, Nathalie ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Génie catalytique

Blacher, Silvia ; Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement

Pirard, Jean-Paul ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Génie catalytique

Language :

English

Title :

Compressing some sol-gel materials reduces their stiffness: a textural analysis

Publication date :

2007

Journal title :

Studies in Surface Science and Catalysis

ISSN :

0167-2991

Publisher :

Elsevier Science, Amsterdam, Netherlands

Volume :

160

Pages :

193-200

Peer reviewed :

Peer reviewed

Available on ORBi :

since 10 February 2009

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Bibliography

K. Kaneko, J. Membrane Sci. 96 (1994) 59.
H.A. Barnes, J.F. Hutton, K. Walters, An Introduction to Rheology, Elsevier: Amsterdam, 1989, Chap 6.
G.W. Scherer, D.M. Smith, X. Qiu, J.M. Anderson, J. Non-Cryst Solids 194 (1996) 283.
R. Pirard, S. Blacher, F. Brauers, J.-P. Pirard, J. Mater. Res. 10 (1995) 2114.
A.P. Roberts, E.J. Garboczi, J. Mech. Phys. Solids 50 (2002) 33.
A.A. Potanin, W.B. Russel, Phys. Rev. E 53 (1996) 3702.
R. Botet, B. Cabane, Phys. Rev. E 70 (2004) 031403.
C. Gommes, S. Blacher, B. Goderis, R. Pirard, B. Heinrichs, C. Alié, J.-P. Pirard, J. Phys. Chem. B 108 (2004) 8983.
N. Job, R. Pirard, J. Marien, J.-P. Pirard, Carbon, 42 (2004) 619.
C.J. Gommes, S. Blacher, M. Basiura, B. Goderis, J.-P. Pirard, Chem. Mat. submitted for publication.
R. Pirard, C. Alié, J.-P. Pirard, Handbook of Sol-Gel Technology, In Characterization of Sol-Gel Materials and Products, Sakka, S. Ed.; Kluwer: Boston, 2005; Vol 2, pp 211-33.
G.M. Channel, K.T. Miller, C.F. Zukoski, AIChE J. 46 (2000) 72.
J. Gross, J. Fricke, R.W. Pekala, L. W. Hrubesh, Phys. Rev. B 45 (1992) 12774.
L.D. Landau, E.M. Lifshiftz, Theory of Elasticity, Butterworth-Heinemann, 1986.