摘要
研究在1 200～1 400℃、低分压氧化性气氛中采用添加剂生坯块、基体,以烧结时间、烧结温度、烧结气氛为条件所进行的二氧化铀坯块的烧结及烧结块的行为和性能。根据试验数据。确定了合适的烧结工艺参数。对试验中的现象进行了分析。提高低分压氧化性气氛烧结块性能的关键措施是适当提高原始粉末的O/U原子比。
The paper introduces the process of sintering, and the performance and property of sintered pellets at 1 200-1 400 ＊C in the low-partial-pressure oxidizing atmosphere,applying green pellets and matrix, and under the testing condition of sintering time, sintering temperature and atmosphere. Based on the testing data,the suitable sintering process parameters were defined. The paper analyzes the phenomenon occurred during the test and concludes that it is a key factor to increase O/U ratio of original UO2 powder to improve the property of sintered pellets in the low-partial-pressure oxidizing atmosphere.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2006年第6期682-687,共6页
Atomic Energy Science and Technology
关键词
二氧化铀
低温烧结
烧结时间
烧结温度
UO2
low-temperature sintering
sintering time
sintering temperature
