Nanomechanical testing system

纳米力学测试系统

• 批准号: 522119324
• 金额: --
• 依托单位: Technische Universität Clausthal
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2023
• 资助国家: 德国
• 起止时间: 2022-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/522119324?language=en
• 关键词: Nanomechanical; testing; system

Nanoindentation enables the determination of microscopic material properties via miniaturized indentation tests. Coupled with lateral specimen movements, it is thus also possible to detect properties such as hardness, Young's modulus, coefficients of friction, fatigue behavior, wear resistance, etc. for individual phases of a material; in contrast to classical test methods such as tensile testing, hardness testing, etc., which can only provide information about the macroscopic material properties. A link between atomistic material structure and resulting macroscopic material properties as a function of the interfacial properties between individual phases can thus be established. This coupling and its understanding is of particular importance for the development, characterization, processing as well as the prediction of the operational behavior of multi-material systems. As the focus of research at the Clausthal Center of Materials Technology (CZM), such multi-material systems are naturally composed of a wide variety of, sometimes incompatible, phases or layers of different materials. Conversely, nanoindentation is an ideal tool for the targeted development of new multi-material systems with specific property profiles. In addition, nanoindentation provides important new insights into the precise phenomenological interactions in the generation and use of multi-material systems. The material groups of metals, non-metallic materials and polymers will be addressed via conventional and additive manufacturing routes. Due to the envisaged temperature support up to 600°C, the nanoindenter technology covers new extensive application areas for multi-material systems, but also measurement applications with regard to many thermal processes in manufacturing processes themselves are feasible. Furthermore, the interdisciplinary research approach pursued at CZM represents a unique characteristic. Working groups from the engineering and natural sciences will work in partly interdisciplinary projects with the large-scale research facility applied for. In particular, new findings in the field of nanoindentation itself can be expected through the connection with other highly sensitive analysis and preparation techniques such as scanning-electron-microscopy, scanning-transmission-electron-microscopy, electron-backscatter-diffraction, nano-Computer-tomography, atomic-force-microscopy, X-ray-photoelectron-spectroscopy, atomic-emission-spectrophotometry, physical-vapour-deposition, focused-ion-beam-analytics, etc., which are within the reach of the CZM surface analysis and functionalization working group.

纳米压痕可以通过小型压痕测试来确定微观材料特性。与横向样本运动相结合，还可以检测材料各个相的硬度、杨氏模量、摩擦系数、疲劳行为、耐磨性等特性；与拉伸测试、硬度测试等经典测试方法相比，这些方法只能提供有关宏观材料性能的信息。因此，可以建立原子材料结构和作为各个相之间的界面性质的函数的宏观材料性质之间的联系。这种耦合及其理解对于多材料系统的开发、表征、处理以及操作行为的预测特别重要。作为克劳斯塔尔材料技术中心 (CZM) 的研究重点，此类多材料系统自然由多种（有时是不相容的）不同材料的相或层组成。相反，纳米压痕是有针对性地开发具有特定性能特征的新型多材料系统的理想工具。此外，纳米压痕为多材料系统的生成和使用中的精确现象学相互作用提供了重要的新见解。金属、非金属材料和聚合物材料组将通过传统和增材制造途径来解决。由于预计温度支持高达 600°C，纳米压痕仪技术涵盖了多材料系统的新的广泛应用领域，而且制造过程本身中许多热过程的测量应用也是可行的。此外，CZM 所追求的跨学科研究方法具有独特的特点。来自工程和自然科学的工作组将在申请大型研究设施的部分跨学科项目中开展工作。特别是，通过与其他高灵敏度分析和制备技术的结合，例如扫描电子显微镜、扫描透射电子显微镜、电子背散射衍射、纳米计算机断层扫描、原子力显微镜、X射线光电子能谱、 原子发射分光光度法、物理气相沉积、聚焦离子束分析等，这些都属于CZM表面分析和功能化工作组的能力范围。