纳米制造关键控制特性第6-1部分:石墨烯基材料体积电阻率:四探针法

[中文适用范围]： 本部分IEC TS 62607确立了确定电气关键控制特性-体电阻率的标准方法，针对由石墨烯基材料（如石墨烯薄片、少层石墨烯和/或还原氧化石墨烯）组成的粉末，在制备成颗粒形式后，使用粉末电阻率测量系统通过四探针法进行测量。体电阻率是粉末型石墨烯产品在电气性能方面质量的度量，并反映了颗粒中粉末型石墨烯的密度依赖性。体电导率可直接从体电阻率推导得出。典型应用领域是使用粉末型石墨烯产品进行石墨烯制造的工业部门、潜在开发者和生产石墨烯基产品的用户。由于根据本文件测量体电阻率需要制备颗粒形式的样品，本文件详细描述了：用于一致制备测试样品（颗粒）的 apparatus（装置）；从粉末型石墨烯制备颗粒的过程；测量颗粒体电阻率（或体电导率）的测量程序；以及对结果的数据分析、解释和报告。 [外文原描述]： IEC TS 62607-6-1:2020 establishes a standardized method to determine the electrical key control characteristic – volume resistivity for powder consisting of graphene-based material like flakes of graphene, few layer graphene and/or reduced graphene oxide after preparation of a sample in pellet form by – four probe method using powder resistivity measurement system. The volume resistivity is a measure of the quality of powder-type graphene products in terms of electrical property and reflects the density-dependency shown in a pellet of powder-type graphene. The volume conductivity can directly be derived from the volume resistivity. Typical application areas are industries that use powder-type graphene products for graphene manufacture, potential developers, and users who produce graphene-based products. As the volume resistivity measured according to this document requires the preparation of a sample in the form of a pellet, this document describes in detail – an apparatus to prepare consistently a test sample, the pellet, – the preparation of the pellet starting from powder-type graphene, – the measurement procedure to measure the volume resistivity (or volume conductivity) of the pellet, and – the data analysis, the interpretation and reporting of the results.