摘要
本文介绍了高温气冷堆燃料元件的发展历史、现状和趋势．经过３０多年的研究和发展，燃料元件的设计、制造工艺和质量鉴证技术都已相当成热，燃料元件可在１２５０℃长期工作，２１２０００个ＴＲＩＳＯ颗粒辐照试验时没有一个破损，１６００℃下辐照后退火５００ｈ，阻挡裂变产物释放的能力没有下降．燃料元件进一步发展的方向是：改善燃料和裂变产物行为预测模型，提高准确程度，降低不确定性；研制耐高温（＞２０００℃）的包覆燃料颗粒，发展抗氧化燃料元件．
The history, status and trend of the development of HTR fuel element is introduced.The design, manufacture and qualification technique have been well developed through over 30 years' international efforts. HTR fuel element develOPed can work at 1250℃. Irradiation experiment of 212000 modern Triso coated fuel particles shows that there is no one Particle failed. Post irradiation annealing at 1600℃ for 500h shows that the fission product retention ability is not degrade. the main activities for further development at the moment are as the following: 1 improving the accuracy and precision of performance prediction models of HTR fuel and fission products;2 investigating new coating materials (e. g ZrC) which could work at temperature higher than 2000℃ under irradiation condition;3 developing oxidation-resistant fuel element.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
1994年第6期506-511,共6页
Nuclear Power Engineering
关键词
高温气冷堆
燃料元件
包覆燃料颗粒
辐照考验
High temperature gas-cooled reactor Fuel element Coated fuel particle Pyrolytical carbon Pyrolytical silicon carbide irradiation experiment
