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Surfactant-based critical phenomena in microgravity
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Paulaitis, Michael E. Kaler, Eric W. |
| Copyright Year | 1994 |
| Description | The objective of this research project is to characterize by experiment and theoretically both the kinetics of phase separation and the metastable structures produced during phase separation in a microgravity environment. The particular systems we are currently studying are mixtures of water, nonionic surfactants, and compressible supercritical fluids at temperatures and pressures where the coexisting liquid phases have equal densities (isopycnic phases). In this report, we describe experiments to locate equilibrium isopycnic phases and to determine the 'local' phase behavior and critical phenomena at nearby conditions of temperature, pressure, and composition. In addition, we report the results of preliminary small angle neutron scattering (SANS) experiments to characterize microstructures that exist in these mixtures at different fluid densities. |
| File Size | 445982 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19950008165 |
| Archival Resource Key | ark:/13960/t43r5sk5v |
| Language | English |
| Publisher Date | 1994-08-01 |
| Access Restriction | Open |
| Subject Keyword | Materials Processing Supercritical Fluids Aqueous Solutions Neutron Scattering Metastable State Liquid Phases Space Processing Phase Separation Materials Kinetics Surfactants Microstructure Microgravity Compressible Fluids Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
