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Updated: Jun 19, 2026

Comprehensive Characterization of Extended Defects in Semiconductor Materials by a Scanning Electron Microscope
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Published on: May 28, 2016

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单晶CMSX-4超级合金中缺陷结构的多层次分析

Robert Paszkowski1, Sławomir Kołodziej1, Mirosława Pawlyta2,3

  • 1Institute of Materials Engineering, University of Silesia in Katowice, 1A 75 Pułku Piechoty St., 41-500 Chorzów, Poland.

Materials (Basel, Switzerland)
|May 7, 2025
PubMed
概括

研究人员分析了单晶轮机叶片的缺陷. 他们发现CMSX-4基于的超级合金在固化过程中形成的大型2-5纳米空洞缺陷.

关键词:
布里奇曼技术的使用一个X射线的地形图.缺陷 缺陷 缺陷 缺陷 缺陷树岩阵列是一个树岩阵列.低角度边界的边界.这是一种基于的超级合金.定子消灭终身光谱 (PALS) 技术传输电子显微镜 (TEM) 的使用缺陷是空缺类型的缺陷.

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Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis07:24

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A perfect crystal, in theory, has a uniform structure with the same unit cell and lattice points throughout. However, any deviation from this periodic arrangement is known as an imperfection or defect. These defects can be categorized into three types: point, line, and plane defects.Point defects occur when there is a deviation from the ideal due to missing atoms, displaced atoms, or additional atoms. These imperfections might occur due to imperfect packing during crystallization or because of...
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Schottky defects arise when some lattice points in a crystal, such as those in NaCl, remain unoccupied, creating lattice vacancies without disturbing the overall electrical neutrality of the crystal. This defect is common in ionic crystals where the positive and negative ions are similar in size, as seen in sodium chloride and cesium chloride. The presence of Schottky defects enables the crystal to conduct electricity to a small extent through an ionic mechanism. Electric fields cause nearby...
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Non-stoichiometric defects refer to a type of defect in the crystal structure of a compound where the ratio of its constituent elements deviates from the ideal stoichiometric ratio. There are two main types of non-stoichiometric defects: metal excess defects and metal deficiency defects.Metal excess defects occur when there is a slight surplus of metal ions than what is required by the stoichiometric ratio of the compound. For example, heating a sodium chloride crystal in sodium vapor results...