Nanoindentation System

纳米压痕系统

• 批准号: 497801977
• 金额: --
• 依托单位: Universität des Saarlandes
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2022
• 资助国家: 德国
• 起止时间: 2021-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/497801977?language=en
• 关键词: Nanoindentation; System

The application is for a universally applicable nanoindentation system for determining the local mechanical properties of materials or individual microstructural components, even under various environmental influences (e.g. temperature, hydrogen, etc.). This is a replacement of a system that is already 16 years old.In addition to the previous areas of application, the new instrument is to be used increasingly in the areas of fast "hardness and modulus mapping" in multiphase and gradient materials as well as in composites, and also for measurement at test temperatures up to 800°C, which our previous system does not allow. The new instrument will also be used for "strain rate jump tests" and dynamic mechanical analysis (DMA) in conjunction with testing at higher temperatures to provide information on the temperature dependence of deformation processes in materials and to make environmental influences visible through in situ tests, such as the influence of hydrogen on material behavior. In addition to classical metallic materials, testing will also be carried out on metallic glasses, on hybrid foams and on polymer materials and composites. In addition, the use of the system for testing, in particular for fatigue, of micrometer- and nanoscale specimens such as "pillars" and "microbeams" will be continued. By means of integrated electrical current-voltage measurement, the electrical contact resistance of metal-matrix composites will be investigated for application in electrical engineering. The replacement procurement ensures the reliable continuation of current research projects and the answering of future research questions in new state-of-the-art projects. The device will continue to be operated in the user group of the applicants and will be available to working groups throughout Saarland University in the "Mechanical Materials Testing" service center.

该应用程序是一个普遍适用的纳米压痕系统，用于确定材料或单个微观结构部件的局部机械性能，即使在各种环境影响下（例如温度，氢气等）。这是一个已经使用了16年的系统的替代品。除了以前的应用领域，新仪器将越来越多地用于多相和梯度材料以及复合材料的快速“硬度和模量测绘”，以及在高达800°C的测试温度下进行测量，这是我们以前的系统所不允许的。新仪器还将用于“应变率跳跃测试”和动态力学分析（DMA），以及更高温度下的测试，以提供有关材料变形过程的温度依赖性的信息，并通过现场测试使环境影响可见，例如氢对材料行为的影响。除了传统的金属材料外，还将对金属玻璃、混合泡沫以及聚合物材料和复合材料进行测试。此外，还将继续使用该系统测试微米级和纳米级试样，如“支柱”和“微梁”，特别是疲劳测试。采用电流-电压一体化测量方法，研究了金属基复合材料的接触电阻特性，为金属基复合材料的电气工程应用奠定了基础。替代采购确保了当前研究项目的可靠延续，并在新的最先进的项目中回答未来的研究问题。该设备将继续在申请人的用户组中运行，并将在“机械材料测试”服务中心提供给整个萨尔兰大学的工作组。