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Evaporation experiments of metallic iron in vacuum
https://doi.org/10.15094/00004677
https://doi.org/10.15094/00004677d0d02cc5-3765-4ffa-9fd3-0a366dc992db
名前 / ファイル | ライセンス | アクション |
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KJ00000036483 (1.2 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1995-03-01 | |||||
タイトル | ||||||
タイトル | Evaporation experiments of metallic iron in vacuum | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00004677 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Tsuchiyama,Akira
× Tsuchiyama,Akira× Fujimoto,Seiji |
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著者所属(英) | ||||||
en | ||||||
Department of Earth and Space Science, Osaka University/Department of Earth and Space Science, Osaka University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Evaporation experiments were carried out to examine evaporation kinetics of metallic iron, one of the important materials forming terrestrial planets and meteorites. Platelets of pure metallic iron were heated at temperatures ranging from 1075 to 1312℃ under vacuum (10^<-5> to 10^<-6> Torr) for 0.5 to 96 hrs. The evaporation proceeds by forming evaporation steps, although small wustite crystals were formed on the surfaces by partial oxidation of iron under vacuum. Amounts of evaporated iron estimated from mass loss of experimental charges increased with time at constant temperatures, showing a linear rate law. The evaporation rates, j, can be represented by ln j=22.21±2.29[mol m^<-2>s^<-1>]-390.6±29.2[kJ mol^<-1>]/RT. The evaporation coefficients, α_v, were obtained by comparing the experimental results with calculated rates using the Hertz-Knudsen equation. The value of α_v is close to unity if effects of partial oxidation are taken into consideration. The present results give basic information for discussing chemical evolution of the primordial solar nebula. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10784627 | |||||
書誌情報 |
Proceedings of the NIPR Symposium on Antarctic Meteorites 巻 8, p. 205-213, 発行日 1995-03 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |