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古代鉄試料錆の状態分析
https://doi.org/10.15024/00000541
https://doi.org/10.15024/00000541a2fed458-25be-4fca-b879-4d88f66d2718
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
kenkyuhokoku_038_15.pdf (307.4 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2016-04-01 | |||||
| タイトル | ||||||
| タイトル | 古代鉄試料錆の状態分析 | |||||
| 言語 | ja | |||||
| タイトル | ||||||
| タイトル | Characterization of Corroded Cultural Iron Properties | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 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 | 10.15024/00000541 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
金子, 克美
× 金子, 克美× Kaneko, Katsumi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | 古墳出土鉄器の腐食生成物には主としてα-FeOOHとγ-FeOOHとが含まれる。古墳出土鉄器の保存にはFeOOH微結晶の構造と表面化学性が重要な働きをするとみられる。鉄器の腐食に関連する，SO₂，H₂OおよびSO₄²⁻，Cl⁻とFeOOH結晶との相互作用，更にFeOOH結晶の不活性化について論ずる。 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The corrosion products of iron swords from burial mounds contain α-FeOOH, γ-FeOOH, Fe₃O₄, and amorphous iron hydroxides. The determination and infrared spectroscopy after separation of ground samples into magnetic and nonmagnetic parts by a handy magnet and successive dissolution of specific components by several acids is introduced. The magnetic corrosion products contain mainly Fe₃O₄, while nonmagnetic samples are predominantly composed of α-FeOOH. The content of α-FeOOH in the corrosion products from the iron swords is much greater than that of atmospheric corrosion products. The surface chemistry of FeOOH microcrystals should play an essentially important role in the conservation of the cultural properties from burial mounds. The crystal and surface structures and surface activities for H₂O and SO₂ of each FeOOH polymorph are explained. Surface hydroxyls on the predominant crystal faces of FeOOH are especially important, causing high adsorption activities for H₂O and SO₂. The FeOOH microcrystals exhibit n-type semiconductivity. The electrical conductivity increases with the rise of temperature and is sensitive to impurities and to the surrounding atmosphere. The dc electrical conductivity at room temperature in dry air is 2-3×10⁻⁹ ohm⁻¹ cm⁻¹. The electrical conductivity increases markedly with adsorption of H₂O and SO₂. High electrical conductivity of the oxide layer due to adsoprtion of H₂O and SO₂ accelerates the corrosion reaction on the iron surface. Also FT-IR examinations show that chemisorption of SO₂ on FeOOH surfaces creates So₃²⁻ and SO₄²⁻, which should induce further corrosion. High surface activity of FeOOH crystals is a serious barrier for the preservation of the corroded cultural properties. Simple surface modification of FeOOH crystals with titanates can change from hydrophilic to hydrophobic surfaces. The titanation leads to marked decrease in the electrical conductivity and in the amount of H₂O adsorption. The titanation of corroded cultural properties should prohibit further corrosion. The preservation method with the titanate coating for the iron-based corroded cultural properties is proposed. |
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| 書誌情報 |
ja : 国立歴史民俗博物館研究報告 en : Bulletin of the National Museum of Japanese History 巻 38, p. 273-285, 発行日 1992-03-31 |
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| 出版者 | ||||||
| 出版者 | 国立歴史民俗博物館 | |||||
| 言語 | ja | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0286-7400 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00377607 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.rekihaku.ac.jp/outline/publication/ronbun/ronbun2/index.html#no38 | |||||
| 関連名称 | 第38集 収録論文 タイトルリスト | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 見出し | ||||||
| 大見出し | 共同研究「歴史資料の非破壊分析法の研究」 | |||||
| 言語 | ja | |||||
| 見出し | ||||||
| 大見出し | Joint Study on Nondestructive Analysis Methods of Historical Objects | |||||
| 言語 | en | |||||
