Atomistic mechanical processing and visualization

原子机械处理和可视化

• 批准号: 09555216
• 负责人: KIZUKA Tokushi
• 金额: $ 2.56万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09555216/
• 关键词: High resolution microscopy; deformation; contact; bonding; fracture; piezo; Atomistic; in-situ; 高分解解透過電子顕微鏡; ピエヅ素子; 原子過程; 高分解能電子顕微鏡; 合金化; ピエゾ素子; その場電子顕微鏡; 原子直視型観察; 高分解能観察; 金; 界面

Atomic processes of mechanical processing were performed and directly observed in situ by time-resolved high-resolution transmission electron microscopy at spatial resolution of 0.1nm and time resolution of 1/60 s.Nanometer-sized tips of gold and silicon approached, and were contacted, bonded, deformed and fractured inside a 200 kV electron microscope using a piezo-driving. Contact boundaries of a few atomic columns width in gold, silicon/silicon-oxide/silicon tunnel junctions, and quantum dots of silicon/gold-cluster/silicon were produced. A few layers near the surfaces and contact-boundaries were responsible for the bonding and separation processes. Atomic scale contact or non-contact type surface-scanning similar to that in scanning probe microscopy was performed by the same method. The mechanical removal of one atomic layer was also demonstrated. New kinds of atomic scale mechanical tests, such as friction test, compressing, tensile and shear deformation tests were proposed.

在空间分辨率为0.1 nm，时间分辨率为1/60的时间分辨高分辨电子显微镜上，直接观察到了机械加工的原子过程。纳米尺寸的金和硅尖端接近，并在200KV电子显微镜内利用压电式驱动进行接触、结合、变形和断裂。在金、硅/硅-氧化物/硅隧道结和硅/金团簇/硅量子点中形成了几个原子列宽的接触边界。靠近表面和接触边界的几层负责粘合和分离过程。用同样的方法进行原子级接触或非接触式表面扫描，类似于扫描探针显微镜中的扫描探针显微镜。还演示了一个原子层的机械去除。提出了新的原子尺度力学试验，如摩擦试验、压缩试验、拉伸和剪切变形试验。

项目成果

Tokushi Kizuka: "Direct Atomic observation of Growth and Related Structural Dynamics of Gold Clusters on Magnesium Oxide"Current Topics in Crystal Growth Research Vol. 5 (Research Trends, Trivandrum, India). 91-106 (1999)

木冢德志：“氧化镁上金簇生长及相关结构动力学的直接原子观察”晶体生长研究当前主题卷。

木塚他(共著): "ミクロの世界・物質編" 学際企画, 408 (1998)

Kizuka 等人（合著者）：“微观世界/材料”跨学科规划，408 (1998)

Tokushi Kizuka and Takashi Yanaka: "Atomic scale electron beam processing"Jpn.J.Appl.Phys.. 38. 1595 (1999)

Tokushi Kizuka 和 Takashi Yanaka：“原子级电子束处理”Jpn.J.Appl.Phys.. 38. 1595 (1999)

T.Kizuka et al.: "Atomic process of electron-induced grain boundary migration of a MgO I5 boundary" Phil.Mag.A77. 413-422 (1998)

T.Kizuka 等人：“MgO I5 边界的电子诱导晶界迁移的原子过程”Phil.Mag.A77。

Tokushi Kizuka: "Atomic processes of grain boundary migration and phase transformation in zinc oxide nanocrystallites"Phil. Mag. Lett.. 79. 417-422 (1999)

Tokushi Kizuka：“氧化锌纳米微晶中晶界迁移和相变的原子过程”Phil。