Abstract
Sintering behaviors of (Pu0.3U0.7)O2.00 and (Pu0.3U0.7)O1.99 were investigated in controlled oxygen potential. Measurements of shrinkage rate were conducted with a dilatometer. The oxygen potential was adjusted to maintain the constant O/M value of the specimen during the measurements. Based on the shrinkage curves, sintering apparent activation energy was estimated by the master sintering curve method and the constant heating rate method. Microstructures of the sintered specimens were also observed using optical microscopy. The densification behavior of (Pu0.3U0.7)O2 and (Pu0.3U0.7)O1.99 differed considerably. The activation energy for (Pu0.3U0.7)O1.99 was much higher than that for (Pu0.3U0.7)O2.00. Grain growth rate of (Pu0.3U0.7)O2.00 was larger than that of (Pu0.3U0.7)O1.99, however, (Pu0.3U0.7)O2.00 ultimately obtained a lower theoretical density than (Pu0.3U0.7)O1.99.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
