9. List of Figures

Li₂O

You can get figures (pdf-file). Fig. 4.1 ~ 4.37 (756 KB)

Fig.4.1

Thermal conductivity data for porous Li2O (80%TD).

Fig.4.2

Thermal conductivity for Li₂O, Li₂ZrO₃, Li₄SiO₄, Be and 316SS.

Fig.4.3

Linear thermal expansion strain (referenced to 25°C) of Li₂O, Li₂ZrO₃, Li₄SiO₄, Be and 316SS.

Fig.4.4

Thermal expansion of single crystal Li₂O.

Fig.4.5

Young's Modulus values for Li₂O, Li₄SiO₄, Be, PCA and HT9.

Fig.4.6

Porosity dependence of Young's Modulus values for Li₂O, Li₂ZrO₃ and Li₄SiO₄.

Fig.4.7

Calculated tensile failure strengths for 80%TD Li₂O, 80%TD Li₄SiO₄, PCA and HT9.

Fig.4.8

Calculated compressive failure strengths for 80%TD Li₂O, 80%TD Li₄SiO₄, PCA and HT9.

Fig.4.9

Porosity dependence of compressive strengths for Li₂O, Li₂ZrO₃ and Li₄SiO₄.

Fig.4.10

Bending failure strength for Li₂O (80%TD, 10 μm-grain diameter). PCA and HT9 tensile failure strengths shown for reference purposes.

Fig.4.11

Secondary thermal creep rate for Li₂O (80%TD, 10 μm-grain diameter) at 700°C. PCA and HT9 curves shown for reference purposes.

Fig.4.12

Secondary thermal creep rate for Li₂O (80%TD, 10 μm-grain diameter) at 800°C.

Fig.4.13

Compressive Creep Rates for Li₂O and Li₄SiO₄ (10 MPa, 100hr).

Fig.4.14

Chemical reaction between Li₂O and Li₄SiO₄) and structure materials during reaction time normalized to 100hr.

Fig.4.15

Hydrogen solubility in Li₂O at 10 Pa of H₂ or H₂O.

Fig.4.16

Temperature dependency of hydrogen and heavy hydrogen absorption for Li₂O.

Fig.4.17

Hydrogen solubility in Li₂O.

Fig.4.18

Hydrogen solubility limit and critical moisture pressure in Li₂O.

Fig.4.19

Water vapor adsorption to Li₂O.

Fig.4.20

Tritium solubility in Li₂O Crystal.

Fig.4.21

Hydrogen(○) and Tritium(●) solubility in Li₂O.

Fig.4.22

Relationship between burn-up and swelling for Li₂O.

Fig.4.23

Volumetric swelling of Li₂O, Li₂ZrO₃ and Li₄SiO₄ at 700°C.

Fig.4.24

Diameter swelling of Li₂O, Li₂ZrO₃ and Li₄SiO₄ at 500°C, 700°C, 900°C.

Fig.4.25

The grain size of irradiated Li₂O, Li₂ZrO₃ and Li₄SiO₄. The indicated grain size was determined by a linear intercept method, 100 full power days (1% atom ⁶Li burn-up).

Fig.4.26

Relationship between weight loss of Li₂O and temperature.

Fig.4.27

Equilibrium constant for the reaction Li₂O(s)+H₂O=2LiOH(g).

Fig.4.28

Burn-up dependency of Li-transfer for Li₂O, Li₂ZrO₃ and Li₄SiO₄.

Fig.4.29

Lattice diffusion coefficient for lightly irradiated Li₂O from Tanifuji(T), Quanci(Q) and Guggi(G).

Fig.4.30

Lattice diffusion coefficient for Li₂O vs. fluence.

Fig.4.31

Diffusion coefficient of T in Li₂O, Li₂ZrO₃ and Li₄SiO₄.

Fig.4.32

Summary of tritium diffusion coef. in Li₂O, Li₂TiO₃, Li₂ZrO₃ and Li₄SiO₄.

Fig.4.33

Tritium residence times for Li₂O.

Fig.4.34

Tritium retention in Li₂O.

Fig.4.35

Tritium retention in Li₂O, Li₂ZrO₃ and Li₄SiO₄ at 700°C.

Fig.4.36

Helium retention in Li₂O.

Fig.4.37

Thermal diffusivity of Li₂O, Li₂ZrO₃ and Li₄SiO₄ (80%TD).

Li₂TiO₃

You can get figures (pdf-file). Fig. 5.1 ~ 5.10 (220 KB)

Fig.5.1

Thermal conductivity data for Li₂TiO₃.

Fig.5.2

Specific heat data for Li₂TiO₃.

Fig.5.3

Measured thermal diffusivity for 80%TD Li₂TiO₃. The values for each group are an overlay of two or three separate runs.

Fig.5.4

Thermal creep rate of Li₂TiO₃ at 600°C and 50 MPa.

Fig.5.5

Summary of tritium diffusion coef. in Li₂TiO₃, Li₂O, Li₂ZrO₃ and Li₄SiO₄.

Fig.5.6

Isothermal tritium release at 300°C, 280°C, 250°C, 200°C, in He+0.1% H₂ purge gas, flow rate 2.4 l-hr^-1 for Li₂TiO₃.

Fig.5.7

Effect of purge gas composition on tritium release from sample sintered at 1498 K and heating rate of 2K/min. (Li₂TiO₃)

Fig.5.8

Effect of sintered temperature on tritium release for a purge gas of pure helium and heating rate of 2K/min. (Li₂TiO₃).

Fig.5.9

Tritium desorption curves for Li₂ZrO₃ and Li₂TiO₃ at a linear heating rate of 2K/min., pure He sweep gas.

Fig.5.10

Temperature dependency of thermal conductivity for TiO₂-doped Li₂TiO₃ pellets.

Li₂ZrO₃

You can get figures (pdf-file). Fig. 6.1 ~ 6.13 (292 KB)

Fig.6.1

Thermal conductivity of Li₂ZrO₃, Li₂O and Li₄SiO₄. (80%TD).

Fig.6.2

Porosity dependence of Young's Modulus values for Li₂ZrO₃, Li₂O and Li₄SiO₄.

Fig.6.3

Porosity dependence of compressive strengths for Li₂ZrO₃, Li₂O and Li₄SiO₄.

Fig.6.4

Volumetric swelling of Li₂O, Li₂ZrO₃ and Li₄SiO₄ at 700°C.

Fig.6.5

Diameter swelling of Li₂O, Li₂ZrO₃ and Li₄SiO₄ at 500°C, 700°C, 900°C.

Fig.6.6

Summary of tritium diffusion coef. in Li₂ZrO₃, Li₂O and Li₄SiO₄.

Fig.6.7

Tritium residence times for Li₂ZrO₃.

Fig.6.8

Isothermal tritium release at 300°C, 250°C, 200°C, in He + 0.1% H₂ purge gas flow rate 2.4 l-hr^-1 for Li₂ZrO₃.

Fig.6.9

Tritium desorption curves for Li₂ZrO₃ and Li₂TiO₃ at a linear heating rate of 2K/min., pure He sweep gas.

Fig.6.10

Tritium retention in Li₂O, Li₂ZrO₃ and Li₄SiO₄ at 700°C.

Fig.6.11

Helium retention in Li₂ZrO₃.

Fig.6.12

Helium retention in Li₂ZrO₃, Li₂O and Li₄SiO₄ after irradiation.

Fig.6.13

Thermal diffusivity of Li₂ZrO₃, Li₂O and Li₄SiO₄ (80%TD).

Li₄SiO₄

You can get figures (pdf-file). Fig. 7.1 ~ 7.7 (160 KB)

Fig.7.1

Porosity dependence of Young's Modulus values for Li₄SiO₄, Li₂O and Li₂ZrO₃.

Fig.7.2

Volumetric swelling of Li₄SiO₄, Li₂O and Li₂ZrO₃ at 700°C.

Fig.7.3

Diameter Swelling of Li₄SiO₄, Li₂O and Li₂ZrO₃ at 500°C, 700°C, 900°C.

Fig.7.4

Summary of tritium diffusion coef. in Li₄SiO₄, Li₂O, Li₂ZrO₃ and Li₂ZrO₃.

Fig.7.5

Tritium residence times for Li₄SiO₄.

Fig.7.6

Helium retention in Li₂O, Li₂ZrO₃ and Li₄SiO₄ after irradiation.

Fig.7.7

Thermal diffusivity of Li₄SiO₄, Li₂TiO₃, Li₂O and Li₂ZrO₃ (80%TD).