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The area includes
applications in which the primary mechanism of degradation is based on
chemical attacks. The fields of application involve masses/monolithics
within the chemical industry and other processing industry such as soda
recovery boilers or cracking plants where the material is exposed to a
chemically aggressive environment at room temperature or above.
First, the work includes
the collection of comparative data for selected existing material
candidates that, from the chemical point of view, are expected to possess
low reactivity and to show low wettability in a given corrosive
environment, within a temperature region of interest from the process
point of view. Both porous and dense materials, primarily oxidic, will be
considered. In applications involving severe attacks, particularly in a
reducing/inert gas environment and at high temperatures, non-oxide
materials based on silicon carbide, sialon or silicon oxynitride can be
evaluated if feasible from the economic point of view. At a later stage,
the selected materials will be tested concerning their product properties
in collaboration with the industrial producers (IFÖ Ceramics AB, Lafarge
Svenska Höganäs AB, and Permascand AB).
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