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1.5. ADVANCED REACTOR DESIGN STUDIES48

Low-Enrichment Graphite-Moderated Molten-Salt Reactors48

A Natural-Convection Molten-Salt Reactor48

PART 2. MATERIALS STUDIES

2.1. METALLURGY53

Dynamic Corrosion Studies53

Inconel Thermal-Convection Loop Tests53

INOR-8 Thermal-Convection Loop Tests53

Inconel Forced-Circulation Loop Tests53

Results of Examination of Samples Removed from

INOR-8 Forced-Circulation Loop 9354-156

Material Inspection57

General Corrosion Studies57

Carburization of Inconel and INOR-8 by Sodium-Graphite Systems57

Carburization of INOR-8 by Fuel 130-Graphite Systems59

UO2 Precipitation in Fused Fluoride Salts in Contact with Graphite61

Precious-Metal-Base Brazing Alloys in Fuel 13064

Mechanical Properties of INOR-864

Influence of Composition on Properties of INOR-865

High-Temperature Stability of INOR-867

Welding and Brazing Studies68

INOR-8 Weldability68

Brazing of Thick Tube Sheets for Heat Exchangers71

Fabrication of Pump Components73

2.2. RADIATION DAMAGE76

INOR-8 Thermal-Convection Loop for Operation in the LITR76

Graphite Capsules Irradiated in the MTR76

2.3. CHEMISTRY78

Phase Equilibrium Studies78

Systems Containing UF4 and/or ThF478

Solubility of PuF3 in LiF-BeF2 Mixtures80

Fission-Product Behavior83

Solubility of Noble Gases in Molten Fluoride Mixtures83

Solubility of HF in LiF-BeF2 Mixtures85

Solubilities of Fission-Product Fluorides in Molten Alkali Fluoride-

Beryllium Fluoride Solvents87

A Simple Method for the Estimation of Noble Gas Solubilities in

Molten Fluoride Mixtures90

Chemical Reactions of Oxides with Fluorides in LiF-BeF292

Chemistry of the Corrosion Process93

Activities in Metal Alloys93

Surface Tensions of BeF2 Mixtures94

Disproportionation of Chromous Fluoride94

Effect of Fuel Composition on the Equilibria 3CrF2↔2CrF3 + Cr° and

3FeF2↔2FeF3 + Fe°95

Activity Coefficients of CrF2 in NaF-ZrF496

Equilibrium Amounts of CrF2 in Molten Salts Containing UF4 Which are in

Contact with Inconel98

Chromium Diffusion in Alloys99

Corrosion of Metals by Aluminum Chloride100

Corrosion of Inconel by Aluminum Chloride Vapor in a Fused Silica Container100

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