The Uranium-Carbon and Plutonium-Carbon Systems A Thermochemical AssessmentPDF电子书下载

NOTATION 10

1．INTRODUCTION 11

2．PREPARATION OF URANIUM CARBIDE SAMPLES 11

Methods 12

Specification 12

Uranium monocarbide 12

Uranium sesquicarbide 13

Uranium dicarbide 14

3．PHASE DIAGRAM 15

Melting points 15

Transformations 16

Reactions 17

4．HEAT CAPACITIES AND THERMAL PROPERTIES OF THE ACTINIDE CARBIDES 18

Uranium monocarbide 18

Low temperature heat capacity 18

Intermediate temperature heat capacity 19

Uranium dicarbide 19

Low temperature heat capacity 19

Intermediate temperature heat capacity 22

High temperature heat capacity 23

Uranium sesquicarbide 24

Agreed values for heat capacities 24

Heat capacity equations 24

Remarks about other actinide dicarbides 25

5．HEATS OF FORMATION OF THE URANIUM CARBIDES 25

Uranium monocarbide 26

Uranium sesquicarbide 27

Uranium dicarbide 27

6．VAPORIZATION STUDIES 27

7．HIGH-TEMPERATURE EQUILIBRIUM MEASUREMENTS 31

The systems U-C-O and U-C-N 31

The system U-C-Bi 32

Ternary systems U-Metal-C 32

The system U-C-Au 33

Summary 34

8．FINAL EVALUATION 34

Entropies,heats and free energies 34

Vaporization data 37

Oxygen-stabilized uranium dicarbide 39

9．THE PLUTONIUM-CARBON SYSTEM 39

10．SUMMARY AND FUTURE WORK 40

11．REFERENCES 42