Irradiation creep induced nano-/microstructure and property changes in nuclear graphite

核石墨已在全球100多个核反应堆中用作慢化剂和结构部件，并计划在新一代高温反应堆（htr）中使用。辐照蠕变是石墨辐照下最重要的三种性质之一，但由于辐照试验极其复杂和耗时，实验数据最少。到目前为止，只有三种石墨牌号的辐照蠕变数据：德国ATR-2E（最高200x1020 n-cm2），英国PGA和英国Gilsocarbon（最高60x1020 n-cm2）。在这个项目中，博士生将有机会接触到珍贵的中子辐照过的蠕变gisloccarbon石墨样品（在5年的ACCENT项目中辐照过，并有大量可用的PIE检查数据），以了解辐照蠕变引起的微/纳米结构变化，以支持国际上新型石墨在htr中的使用。

Nuclear graphite has been employed as a moderator and structural components in more than 100 nuclear reactors worldwide and they are also projected to use in new Generation IV high-temperature reactors (HTRs). Irradiation-induced creep, among one of the three most important properties of graphite under irradiation, has the least amount of experimental data due to its extremely complex and time-consuming requirements for irradiation tests. So far there are only irradiation creep data on three types of graphite grades: German ATR-2E (up to 200x1020 n-cm2), UK PGA and UK Gilsocarbon (up to 60x1020 n-cm2). In this project, the PhD student will have access to the precious neutron irradiated crept Gislocarbon graphite samples (irradiated in the 5-year ACCENT project and have extensive bulk PIE examination data available) to understand the irradiation creep-induced micro-/nano-structural changes before turnaround, to support the use of new graphites in HTRs internationally.