Thermal expansion and viscosity of confined liquids

Shuangyan Xu, Gregory C. Simmons, George W. Scherer

Research output: Contribution to journalConference articlepeer-review

16 Scopus citations


The thermal expansion and viscosity of water and salt solutions in porous silica glasses have been systematically investigated, and the effect of salts on the properties of water in confined geometry has been addressed. A dilatometric method has been devised and utilized to measure the thermal expansion of confined liquids. A beam-bending method that was developed to study the permeability of porous bodies has been used to measure the relative viscosity of salt solutions to water inside the silica pores. This work has demonstrated that water when confined in nanopores shows anomalous behavior and its thermal expansion is higher than bulk water. This work has also suggested that the presence of ions in water could enhance the anomaly of water in confined space and the extent of the ion effect is dependent on the ion charge.

Original languageEnglish (US)
Pages (from-to)85-91
Number of pages7
JournalMaterials Research Society Symposium - Proceedings
StatePublished - 2003
EventDynamics in Small Confining Systems - 2003 - Boston, MA, United States
Duration: Dec 1 2003Dec 4 2003

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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