Thermal stability of zirconia-s and thoria-base fuels (LWBR Development Program)

Abstract

This report waa prepared as an account of Government Bponaored work. Neither the United States, nor the Commission, nor any person acting on behalf of the Commission A Makes any warranty or representation, expressed or implied, with respect to the accuracy, completeness, or usefulness of the information contained in this report, or that the use of any information, apparatus, method, or process disclosed in this report may not infringe privately owned rights, or B Assumes any liabilities with respect to the use of, or for damages resulting from the use of any Information, apparatus, method, or process disclosed in this report. As used in the above, "person acting on behalf of the Commission" includes any employee or contractor of the Commission, or employee of such contractor, to the extent that such employee or contractor of the Commission, ot employee of such contractor prepares, disseminates, or provides access to. any informatloti pursuant to his employment or contract with the Commission, or his employment with such contractor AEC Contract No. W 7405-eng-92 Report No. BMI-1789 UC-25 Metals, Ceramics and Materials CFS« nsCBA ac. »

Kinetics of laser pulse vaporization of uranium dioxide by mass spectrometry

“…Similarly, (2-8) (2)(3)(4)(5)(6)(7)(8)(9) where Cp is the constant pressure specific heat in J/g-K. Therefore, equation (2)(3)(4)(5)(6) becomes: oU ho oCo oT -= ---+ Cat P at p at k = thermal conductivity, W /cm-K…”

“…Therefore, equation (2)(3)(4)(5)(6) becomes: oU ho oCo oT -= ---+ Cat P at p at k = thermal conductivity, W /cm-K…”

“…The two balance equations (2)(3)(4) and (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12) are coupled through the two fluxes jg and q.…”

“…T(x,O) = To and C 0 (x,O) = cg @ t=O (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15) where T 0 is the initial temperature before laser impingement and cg is the initial mass concentration of oxygen.…”

“…The mass balance for oxygen atoms at the interphase boundary gives: jg = j8 + vq @ x=O (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16) where C~ is the mass concentration of oxygen atom of the solid at the surface, j8 is the total vaporization mass flux of oxygen in the gas phase. The latter is:…”