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Thermal and evolved gas analysis of "nanophase" carbonates: implications for thermal and evolved gas analysis on mars missions
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Niles, P. B. Lauer Jr., Howard V. Sutter, B. Archer Jr., P. D. Ming, Douglas W. |
| Copyright Year | 2012 |
| Description | Data collected by the Mars Phoenix Lander's Thermal and Evolved Gas Analyzer (TEGA) suggested the presence of calcium-rich carbonates as indicated by a high temperature CO2 release while a low temperature (approx.400-680 C) CO2 release suggested possible Mg- and/or Fe-carbonates [1,2]. Interpretations of the data collected by Mars remote instruments is done by comparing the mission data to a database on the thermal properties of well-characterized Martian analog materials collected under reduced and Earth ambient pressures [3,4]. We are proposing that "nano-phase" carbonates may also be contributing to the low temperature CO2 release. The objectives of this paper is to (1) characterize the thermal and evolved gas proper-ties of carbonates of varying particle size, (2) evaluate the CO2 releases from CO2 treated CaO samples and (3) examine the secondary CO2 release from reheated calcite of varying particle size. |
| File Size | 549125 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20120001840 |
| Archival Resource Key | ark:/13960/t6j151w92 |
| Language | English |
| Publisher Date | 2012-01-01 |
| Access Restriction | Open |
| Subject Keyword | Carbon Dioxide Calcium Carbonates Mars Surface Thermal Analysis Gas Analysis Thermodynamic Properties Gas Detectors Data Bases Mars Missions Low 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 |
