Direct imaging of Guinier-Preston zones by high-angle annular detector dark-field scanning transmission electron microscopy.

Konno TJ; Kawasaki M; Hiraga K

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Direct imaging of Guinier-Preston zones by high-angle annular detector dark-field scanning transmission electron microscopy.

机译：高角度环形检测器暗场扫描透射电子显微镜直接成像Guinier-Preston区。

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摘要

We report atomic resolution imaging of Cu-planar precipitates in aged Al-Cu alloys, known as Guinier-Preston (GP) zones, by high-angle annular detector dark-field scanning transmission electron microscopy. Single layered GP-I zones as small as 2 nm in length were resolved among densely populated GP-I zones, whereas double layered GP zones were clearly identified. The images of GP-II zones showed not only the commonly accepted structure, in which single Cu layers are separated by three Al layers, but also a variant, in which double Cu layers are separated by a single Al layer.

机译：我们通过大角度环形探测器暗场扫描透射透视显微镜向老年的Al-Cu合金中报告u-Cu合金中的u-Cu合金沉淀物的原子分辨率成像。在密集地填充的GP-I区中，单层GP-I区长达2nm的小于2nm，而是清楚地识别出双层GP区。 GP-II区的图像不仅显示了常用的结构，其中单个Cu层由三个Al层分离，而且还有一个变体，其中双Cu层通过单个Al层分离。

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《Journal of Electron Microscopy》 |2001年第2期|共7页
作者
Konno TJ; Kawasaki M; Hiraga K;
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正文语种 eng
中图分类临床医学;
关键词
Glycoproteins; Copper measurement; Preston; Detectors; Scanning Transmission Electron Microscopy Procedures; 糖蛋白类;

机译：糖蛋白;铜测量;普雷斯顿;探测器;扫描透射电子显微镜手术;糖糖蛋白;

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3. Direct imaging of Guinier-Preston zones by high-angle annular detector dark-field scanning transmission electron microscopy. [J] . Konno TJ, Kawasaki M, Hiraga K Journal of Electron Microscopy . 2001,第2期

机译：高角度环形检测器暗场扫描透射电子显微镜直接成像Guinier-Preston区。
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Direct imaging of Guinier-Preston zones by high-angle annular detector dark-field scanning transmission electron microscopy.

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