Process for producing a pure-phase multisubstance system, a ceramic material based on the pure-phase multisubstance system, a shaped body, and a composite formed therefrom

A process for producing a multi compound system which is homogeneous and which is at least one of hydroxide-based and oxide-based, the process comprising:

• a first alternative process which comprises:
• providing a first metal precursor in a first hydrofluoric solution,
• providing a second metal precursor in a second hydrofluoric solution, and
• mixing the first hydrofluoric solution and the second hydrofluoric solution so as to provide a mixed hydrofluoric solution comprising a dissolved first metal precursor and a dissolved second metal precursor, or
• a second alternative process which comprises:
• dissolving the first metal precursor and the second metal precursor in an alternative mixed hydrofluoric solution;
• and
• precipitating the mixed hydrofluoric solution or the alternative mixed hydrofluoric solution with a precipitation agent so as to provide a solids mixture in a suspension,
• wherein,
• the first metal precursor is from the group consisting of Mo, W, Nb, Re, Zr, Hf, V, Sb, Si, Al, and Ta,
• the second metal precursor is from the group consisting of Mo, W, Nb, Re, Zr, Hf, V, Sb, Si, Al, and Ta,
• the first metal precursor is different from the second metal precursor, and
• at least one of the first metal precursor and the second metal precursor is provided as at least one of a fluoro complex and as an oxyfluoro complex.