Improvement of the sinterability of thermally-treated UO2 powder by horizontal rotary ball milling

Lee, Jung Won; Kim, Si Hyung; Yim, Sung Paal; Kim, Jong Ho; Kim, Woong Ki; Jin, Min Ho; Yang, Mino

doi:10.1007/bf03026989

Cited by 3 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a major result of this study, the milling process is very important for improving the powder properties and fabricating good quality pellets as described in a previous report. 11,13) On the basis of the experimental results using the natural UO 2 powder, the unit process and process flow sheet for the DUPIC fuel fabrication were studied by using SIMFUEL, which is unirradiated UO 2 blended with stable chemical additives to simulate the composition of irradiated UO 2 . A SIMFUEL fabrication process was established and the properties of the fabricated SIMFUEL were investigated.…”

Section: Basic Process Developmentmentioning

confidence: 99%

See 1 more Smart Citation

Remote Fabrication of DUPIC Fuel Pellets in a Hot Cell under Quality Assurance Program

Lee

Kim

Lee

et al. 2007

Journal of Nuclear Science and Technology

Self Cite

View full text Add to dashboard Cite

ÃÃThe Korea Atomic Energy Research Institute (KAERI) has been developing the Direct Use of Spent Pressurized Water Reactor (PWR) Fuel in the CANada Deuterium Uranium (CANDU) Reactors (DUPIC) fuel fabrication technology since 1992, and the basic DUPIC fuel fabrication process was established in 2002. In order to demonstrate the robustness of the DUPIC fuel fabrication process through the irradiation test, it is important that a Quality Assurance (QA) program should be in place before a fabrication of the DUPIC fuel. Therefore, the Quality Assurance Manual (QM) for the DUPIC fuel was developed on the basis of the Canadian standard, CAN3-Z299.2-85. This manual describes the quality management system applicable to the activities performed for the DUPIC fuel fabrication at KAERI. In order to demonstrate the DUPIC fuel fabrication technology and produce qualified DUPIC fuel pellets, the process qualification tests were performed, which include three pre-qualification tests and three qualification tests. The characteristics of the DUPIC fuel pellets such as the sintered density, grain size, and surface roughness were measured and evaluated in accordance with the QA procedures. The optimum fabrication process of the DUPIC fuel pellet was also established based on the qualification results. Finally a production campaign was carried out to fabricate the DUPIC fuel pellets at a batch size of 1 kg following the QA program. As a result of the production campaign, qualified DUPIC fuel pellets were successfully produced and, therefore, the remote fuel fabrication technology of the DUPIC fuel pellet was demonstrated.

show abstract

Section: Basic Process Developmentmentioning

confidence: 99%

“…In addition, the effects of the milling conditions on the powder and pellet properties were also investigated. 11,13) Figure 4 shows the effect of the milling process on the powder properties and Fig. 5 shows the powder morphology.…”

Section: Basic Process Developmentmentioning

confidence: 99%