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The preparation of tetragonal zirconia polycrystal (TZP) ceramics stabilized by the addition of calcia is presented. These novel ceramics were obtained by means of a fast-firing treatment applied to compacts of nanocrystalline powders with a composition of ZrO 2 - 4 mol% CaO. Powders were synthesized by a nitrate-citrate gel-combustion process and they exhibited the tetragonal phase at room...
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