Abstract
The density of TiO2 liquid in equilibrium with air has been measured at 1875° to 1925°C using an Ir double bob Archimedean method. The melt density data have been combined with data extrapolated from the CaSiO3─TiO2 join at 1600°C. A combined fit to these density data yields the following description of the density of liquid TiO2: ρ= 3.7611 - 0.00028T(°C), in the temperature range of 1600° to 1925°C. This expansivity value is consistent with those obtained on TiO2-rich melts using a Pt-based system at lower temperature and with multicomponent oxide data. The similarity between the volume of liquid TiO2 and that of crystalline rutile implies a dominantly octahedral coordination of Ti in the liquid state.
| Item Type: | Journal article |
|---|---|
| Faculties: | Geosciences > Department of Earth and Environmental Sciences > Mineralogy, Petrology and Geochemistry |
| Subjects: | 500 Science > 550 Earth sciences and geology |
| URN: | urn:nbn:de:bvb:19-epub-6017-6 |
| Language: | English |
| Item ID: | 6017 |
| Date Deposited: | 04. Sep 2008 15:09 |
| Last Modified: | 04. Nov 2020 12:49 |
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