HYDROGEN AND MINOR ELEMENT INCORPORATION IN SYNTHETIC RUTILE
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dc.contributor.author | Bromiley G.D. | |
dc.contributor.author | Hilairet N. | |
dc.date.accessioned | 2023-12-16T06:35:07Z | |
dc.date.available | 2023-12-16T06:35:07Z | |
dc.date.issued | 2005 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=28067996 | |
dc.identifier.citation | Mineralogical Magazine, 2005, 69, 3, 345-358 | |
dc.identifier.issn | 0026-461X | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/42346 | |
dc.description.abstract | The solubility and incorporation mechanisms of H and various trivalent and divalent cations in synthetic rutile have been investigated. Experiments performed using different bulk Fe2O3 contents demonstrate that Fe3+ substitutes onto the main Ti site, charge-balanced by oxygen vacancies. Under more reducing conditions in Fe-poor systems, the concentration of Ti interstitials in rutile is increased, resulting in a decrease in H solubility. Variation in the solubility of different oxides in rutile as a function of ionic radius implies substitution onto the main Ti site, probably charge-balanced by oxygen vacancies. To a lesser degree, substitution of trivalent and divalent cations is locally charge-balanced by H incorporation. Variation in OH-stretching frequencies in infrared spectra as a function of composition implies that octahedral defects and structurally-incorporated H are coupled. However, in all samples, some of the H is also decoupled from substitutional impurities, as is evident from an OH-absorption band at 3279 cm-1. This band corresponds to the main OH band seen in spectra of many natural rutiles, implying that in most rutiles, H defects are decoupled from substitutional defects. © 2005 The Mineralogical Society. | |
dc.subject | HYDROGEN | |
dc.subject | RUTILE | |
dc.subject | SOLUBILITY | |
dc.subject | SPECTROSCOPY | |
dc.subject | SUBSTITUTION | |
dc.title | HYDROGEN AND MINOR ELEMENT INCORPORATION IN SYNTHETIC RUTILE | |
dc.type | Статья | |
dc.identifier.doi | 10.1180/0026461056930256 |
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