Observations of liquid lithium uptake in a porous molybdenum foam

Thermocapillary and thermoelectric effects in liquid lithium plasma facing components

“…Heat leaves the CV via convection and conduction. In the case of a porous material, conduction occurs in both the liquid and solid leading to an effective thermal conductivity [15] given as k eff = fk l + (1 À f)k s where l and s subscripts refer to the liquid and solid, respectively, and f is the porosity of the material. This energy balance is written in Eq.…”

“…2 for different velocities and thicknesses. In the case of the porous medium, a porous molybdenum foam with 80% porosity saturated with liquid lithium at 250°C is used [15].…”

“…For reference, the mean pore size of the material reported in Ref. [15] is estimated at 400 lm with a ligament thickness of about 100 lm. Using the properties of molybdenum and liquid lithium, an NSTX level field of 0.5 T and a surface heat flux of 1 MW/m 2 , the mean velocity is 28 cm/s.…”

Influence of Inter-Particle Bonding on Compression Performance of Porous Mo Deposited by Flame Spraying of Semi-Molten Particles

“…However, the applications of Mo are limited due to processing difficulties resulting from its high melting point (2600 ± 50 • C). A conventional processing method to fabricate porous Mo is powder metallurgy processing [6,7]. However, the low porosity (below 30%) achieved by this method cannot meet application requirements.…”

Deuterium ion–surface interactions of liquid-lithium thin films on micro-porous molybdenum substrates

“…A porous molybdenum substrate was chosen to be the material makeup of the LLD, because it emulates properties of lithium loading of the capillary porous systems within lithium limiters in T-11M and FTU [11]. Several studies have investigated lithium loading of porous molybdenum structure [12]; however; the effect of a porous structure on the lithium surface chemistry and the effects of the ion-solid interactions remain unknown.…”