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A thermogravimetric study has been performed on the variation of the oxygen content of (partially stabilized) zirconia, doped with 10 mol% CaO and with Fe 2 O 3 and TiO 2 in varying concentrations, and of a commercial, CaO-doped zirconia, ZR23. The variation of the oxygen content was investigated as a function of the oxygen activity at 1300 o C and in the case of the...
Platinum is a non-inert material which reacts with oxides when in contact at high temperatures. The degree of such reactions depends strongly on the oxygen partial pressures established in the environment of the Pt-oxide reaction couple. If the oxygen partial pressure is decreased, oxygen is released due to (i) the dissolution of metallic components of oxides into Pt and (ii) changes in the oxide...
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