Soustava Os-Mo-S

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F08%3A00000166" target="_blank" >RIV/00025798:_____/08:00000166 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The system Os-Mo-S

Popis výsledku v původním jazyce

Phase relations in the Os-Mo-S system were studied by the technique of evacuated silica glass tubes in a 1000 isothermal section. Molybdenite forms stable assemblages with erlichmanite and osmium. Mo2S3 coexists with Os, Mo and Mo-Os alloys. Experimentsaimed at the determination of the MoS2 -OsS2 solvus were conducted at temperatures 600 - 1200°C. Molybdenite dissolves 0.24 and <0.2 at.% Os at 1200°C and 1000°C, respectively; below 1000°C, the Os contents are below 0.1 at%. Os concentrations in naturalmolybdenite are extremely low, on the order of ppb (Stein et al. 2001), and therefore are extremely unlikely to reach the experimentally established solubility limit. According to a thermodynamic analysis, OsS2 is stable in the pyrrhotite stability field, which corresponds to a geologically common activity of sulphur. Therefore, Os will prefer to be sulphide-bonded under the same conditions under which molybdenite occurs in nature.

Název v anglickém jazyce

The system Os-Mo-S

Popis výsledku anglicky

Phase relations in the Os-Mo-S system were studied by the technique of evacuated silica glass tubes in a 1000 isothermal section. Molybdenite forms stable assemblages with erlichmanite and osmium. Mo2S3 coexists with Os, Mo and Mo-Os alloys. Experimentsaimed at the determination of the MoS2 -OsS2 solvus were conducted at temperatures 600 - 1200°C. Molybdenite dissolves 0.24 and <0.2 at.% Os at 1200°C and 1000°C, respectively; below 1000°C, the Os contents are below 0.1 at%. Os concentrations in naturalmolybdenite are extremely low, on the order of ppb (Stein et al. 2001), and therefore are extremely unlikely to reach the experimentally established solubility limit. According to a thermodynamic analysis, OsS2 is stable in the pyrrhotite stability field, which corresponds to a geologically common activity of sulphur. Therefore, Os will prefer to be sulphide-bonded under the same conditions under which molybdenite occurs in nature.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

<a href="/cs/project/GA205%2F08%2F0122" target="_blank" >GA205/08/0122: System Fe-Mo-Nb-S a jeho mineralogická aplikace</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Canadian Mineralogist

ISSN

0008-4476

e-ISSN

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Svazek periodika

46

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CA - Kanada

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

261417400014

EID výsledku v databázi Scopus

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