ORNL-1816 - the Molten Salt Energy Technologies Web Site

4 . CRITICAL EXPERIMENTS ........................................... 52
Ref lector-Moderated Reactor .......................................... 52
PART II . MATERIALS RESEARCH
5 . CHEMISTRY OF MOLTEN MATERIALS ................................... 57
Phase Equilibrium Studies ............................................ 57
Solid phase studies in the NaF.Zr,.UF, system ............................. 57
Phase relationships in UF3-bearing systems ............................... 58
Solubility of UF, in NaF-KF-LiF eutectic ................................ 59
UF stability ................................................... 60
DifLential thermal analysis ......................................... 61
Chemical Reactions in Molten Salts ...................................... 61
Reduction of FeF, by H, in NaF.ZrF, systems ............................. 61
Reduction of UF, to UF, in fluoride melts ................................ 61
Electrochemistry of fused salts ....................................... 62
Stability of chromous and ferrous fluorides in molten fluorides ................... 63
Reduction of UF, by structural metals ................................... 64
Production of Purified rkiolten Fluorides ................................... 66
Electrolytic purification of zirconium-base fluorides .......................... 66
Fluoride production facility .......................................... 68
Alkali fluoride processing facility ..................................... 69
Purification of KF and RbF .......................................... 70
Preparation of various fluorides ....................................... 71
Chemis+ry of Alkali Hydroxides ........................................ 71
Purification of hydroxides .......................................... 71
Effect of additives on hydrogen pressure over NaOH-Ni system ................... 71
Fundamental Chemistry of Fused Salts .................................... 72
Solubility of xenon in fused salts ...................................... 72
X-ray diffraction studies in salt systems ................................. 72
Physical chemistry ............................................... 73
Viscosity measurements ............................................ 75
6 . CORROSION RESEARCH ............................................ 76
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Thermal-Convection Loop Corrosion Studies ................................ 76
lnconel loop containing UF, in alkali-metal-base mixtures ...................... 76
Type 316 stainless steel loops containing UF, in alkali-metal-base mixtures ......... 76
Effect of induced potentials ......................................... 77
Hastelloy B thermal-convection loops ................................... 77
Special alloy thermal-convection loops .................................. 77
Sodi urn-beryl lium-lnconel Compatibility ................................... 78
Static Corrosion Studies ............................................. 80
Brazing alloys on stainless steel ...................................... 80
Grazing alloys on nickel ............................................. 80
Screening tests of carbides .......................................... 82
Magnesium-lithium alloy in water ...................................... 86
Rubidium Investigations ............................................. 87 U
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