Electron spectroscopic microscopy of state analysis and microstructure of minerals

矿物状态分析和微观结构的电子能谱显微镜

• 批准号: 09640575
• 负责人: UEHARA Seiichiro
• 金额: $ 0.38万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09640575/
• 关键词: electron spectroscopy; electron energy loss spectroscopy; electron spectroscopic imaging; energy filtering TEM; light elements; diamond; carbon materials; Shinsha-Yu

Recently electron spectroscopic transmission electron microscopy (ES-TEM) has been using in material sciences. Now ES-TEM is also called energy filtering TEM (EF-TEM) . This new TEM gives the ability to apply the fast and very efficient tool of electron spectroscopic imaging (ESI) for mineral characterization and to record EELS spectra. In this study a new EF-TEM (JEOL-2010FEF) and JEOL JEM4000EX with GIF (Gatan imaging filter) was used for qualitative analysis of light elements (Li, Be, B), nano-structure of a copper precipitate in "Shinsha-Yu (red glaze) and chemical state analysis of carbon materials made by CVD.The following results are obtained :(1) Li in spodumene, Be in beryl, B in elbaite were able to detected in EELS spectra. Although, LiK edge from spodumene is very faint.(2) Many spherical copper precipitates of 20 nm in size are found in red glaze, the copper precipitates show EELS spectrum similar to metal copper.(3) EELS spectra of carbon materials (diamond and graphite) were obtained by EF-TEM and conventional parallel EELS.The both spectra have same resolution.

近年来，电子光谱透射电子显微镜（ES-TEM）已广泛应用于材料科学领域。现在ES-TEM也被称为能量过滤TEM（EF-TEM）。这种新的TEM能够应用快速和非常有效的电子光谱成像（ESI）工具进行矿物表征和记录EELS光谱。本研究采用新型EF-TEM（JEOL-2010 FEF）和JEOL JEM 4000 EX（Gatan imaging filter）对轻元素（Li、Be、B）进行定性分析，对“新沙玉”（红釉）中铜沉淀物的纳米结构进行定性分析，并对CVD法制备的碳材料进行化学状态分析。尽管锂辉石的LiK边缘很微弱。(2)在红釉中发现了许多直径约为20 nm的球形铜沉淀物，其EELS谱与金属铜相似。(3)用EF-TEM和常规平行EELS获得了碳材料（金刚石和石墨）的EELS谱，两种谱具有相同的分辨率。

项目成果

Uehara, S.: "EF-TEM observations of thin platy carbon materials synthesized by hot-filament CVD method." Annual Reports, HVEM LAB., Kyushu Univ.22. 69-70 (1998)

Uehara, S.：“通过热丝 CVD 方法合成的薄板状碳材料的 EF-TEM 观察。”

Watanabe, K.: "Transmission electron microscopic image of ion tracks in aptite" Kyushu Univ., Tandem Accelerator Lab.Rep.6. 124-127 (1997)

Watanabe, K.：“aptite 中离子轨迹的透射电子显微镜图像”九州大学，串联加速器实验室.Rep.6。

上原 誠一郎: "イメージングプレートと写真フィルムの特性" Annual Reports, HVEM LAB., Kyushu UNIV.21. 47-48 (1997)

Seiichiro Uehara：“成像板和摄影胶片的特性”年度报告，HVEM LAB.，Kyushu UNIV.21 (1997)。

Oba, T.: "Microstructure of perthites in syenites from the Yamato Mountains, East Antarctica" Proceedings of the NIPR Symposium on Antarctic Geoscienes. 10. 120-129 (1997)

Oba, T.：“南极洲东部大和山脉正长岩中长长岩的微观结构”，NIPR 南极地球科学研讨会论文集。

S.Uehara: "TEM and XRD studies of antigorite superstructure" Annual Reports,HVEM LAB.,Kyushu Univ.21. 23-24 (1997)

S.Uehara：“叶蛇纹石上部结构的 TEM 和 XRD 研究”年度报告，HVEM LAB.，九州大学 21。