Concerns:

Several compatibility concerns could be raised for tritium/material interactions.

1. The mechanical integrity of the material

2. The escape rate of tritium into and through the material

3. Contamination of tritium by the material and vice versa

4. Gettering capabilities of a substance for tritium

Mechanical integrity is a function of how well the material dissipates the energy of colliding beta particles and how well it excludes tritium from its bulk. Cross-contamination occurs while materials hold hydrogen or carbon in their bulk or at their surface or while the materials absorb an important amount of tritium.

Gettering capabilities are hugely a function of alloy overpressure. A procedure of gettering is the removal of gases through sorption; absorption, adsorption, or chemisorption. Within absorption the atoms of the gas dissolve among the atoms of the alloy. Within adsorption and chemisorption, the molecules of the gas adhere to the surface of the alloy. The difference between adsorption and chemisorption is the category and strength of bonds which contain the molecules to the surface.