增加Sieverts' law后，在间隙中的氚浓度远高于Al2O3涂层内表面的氚浓度，这是由于这种工况温度下得出的氚在Al2O3中的溶解度很低（氚在Al2O3中的溶解度低于在FeCrAl中约6~7个数量级），在相对较大的氚分压下，Al2O3涂层内表面才能吸附少量的氚。同无涂层FeCrAl燃料棒规律类似，Soret effect也使FeCA1合金内表面处的氚浓度更高。

After increasing Sieverts' law, the concentration of tritium in the gap is much higher than the concentration of tritium on the surface of the Al2O3 coating, which is due to the low solubility of tritium in Al2O3 at this working temperature (the solubility of tritium in Al2O3 is lower than about 6 to 7 orders of magnitude in FeCrAl), and under relatively large tritium partial pressure, the surface of the Al2O3 coating can adsorb a small amount of tritium. Similar to the uncoated FeCrAl fuel rod, the Soret effect also results in a higher concentration of tritium on the inner surface of the FeCA1 alloy.