Fabrication parameters that affect operational properties of 238PuO2 radioisotopic fuels

A jJucfj' lo examine the relationship of fabrieaitan parawctcr* se seieeud properties of ^PuO.has bees initiated.The ^ IMO-will be >tsi in power sources for RTC' (RadiDSiotoptc Thermal Generator*) 1B space fiiltiion*; therefore the retponsc ot the mcrlaJ to a wide variety cf thermal and mechanical stresses mtui tie undemoed.Kwm-er, thi* retpoiiie is pl>' a function of the process ing of the : * luO; into the *peclfie4 gvemeuy of the fuel The initial phrce of this study concentrated e the mlcroitrttctunl ance of the fuel following it* fabritaticw uttdtr varying: *<H*5i!fofl#-Th paramettr* examined included variations in (tl ftd gramtle sise rtttfti, 3 eoSd prtcsiaf pressures, $pre-pres *ea*oanf tcmperaiuro*.(41 hot prtBf pr** ure*, sud 0) !*t-prci(s sintering; temperature*.Th rtsultaM aiructura} differenees wctrt correlated with these processing parameters.fMTItODlfCTtOS!