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Thermodynamic studies of high temperature materials via knudsen cell mass spectrometry
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Jacobson, Nathan S. Brady, Michael P. |
| Copyright Year | 1997 |
| Description | The Knudsen Cell technique is a classic technique from high temperature chemistry for studying condensed phase/vapor equilibria. It is based on a small enclosure, usually about 1 cm in diameter by 1 cm high, with an orifice of well-defined geometry. This forms a molecular beam which is analyzed with mass spectrometry. There are many applications to both fundamental and applied problems with high temperature materials. Specific measurements include vapor pressures and vapor compositions above solids, activities of alloy components, and fundamental gas/solid reactions. The basic system is shown. Our system can accommodate a wide range of samples, temperatures, and attachments, such as gas inlets. It is one of only about ten such systems world-wide. |
| File Size | 306770 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19970024961 |
| Archival Resource Key | ark:/13960/t7dr7sg3x |
| Language | English |
| Publisher Date | 1997-04-01 |
| Access Restriction | Open |
| Subject Keyword | Inorganic And Physical Chemistry Thermodynamics Knudsen Gages Refractory Materials Vapor Pressure Gas-solid Interactions Mass Spectroscopy Molecular Beams High Temperature Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
