Abstract
As a part of studies on the development of the swaging process for fabrication of the UO2 fuel rod, UO2 compaction and energetics in swaging were dealt with mainly by investigation of the rise in temperature during the process. The temperature was measured by means of a thermocouple of Chromel-Alumel or Pt-PtRh inserted into UO2 powder in a container of the stainless steel tube. The rise in temperature of UO2 compact during swaging was as high as 1680°C for hot swaging at 720°C, whereas only a temperature rise of 170°C was observed for cold swaging. The main causes for the heat generation were plastic deformation and friction between UO2 particles, The former was dominant in hot swaging, and the latter in cold swaging. Optical and electron micro-scopies also revealed the plastic deformation and temperature rise of UO2 compact. The internal energy stored in cold swaged UO2 compact was detected by specific heat measurement.
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.
