The HTL has a measuring furnace (TOM_metal) which can be used to carry out heat processes in hydrogen atmospheres up to temperatures of 1800°C. Dimensional changes can be measured in situ. The furnace is used, for example, to optimize powder metallurgical sintering processes. Aging experiments or reduction processes in hydrogen-containing atmospheres can also be carried out in TOM_metal.
In addition, another measuring furnace (TOM II) has been developed at the HTL to flexibly simulate the atmospheres generated during the combustion of hydrogen or hydrogen/natural gas mixtures. In TOM II, reducing, inert or oxidizing atmospheres can be used. Weight and dimensional changes are measured during heat treatment. TOM II is used for in-situ measurement of sintering processes in hydrogen-fired furnaces and for investigations of the corrosion behavior of high-temperature materials under hydrogen exposure. After exposure, corrosion phenomena can be investigated by microstructural analyses and thermodynamic calculations. The optimization of sintering processes under hydrogen or steam atmospheres is carried out with the established sintering models of the HTL. With the help of digital furnace twins, the HTL can design industrial heating processes using hydrogen as an energy source.
Silicon-free, high-temperature resistant EBC (Enviromental Barrier Coatings), as required for hydrogen combustion applications are also being developed at the HTL.