Zirconia- and cerium-oxide-based sintered bead

Details Zirconia- and cerium-oxide-based sintered bead Zirconia- and cerium-oxide-based sintered bead

C - Chemistry, Metallurgy

04

B

C04B 35/486 (2006.01)

Patent

CA 2599421

The invention relates to a sintered bead having the following chemical composition, expressed in percentage by weight to give 100 %, namely: ZrO2 + HfO2 = 78 - 85 %; CeO2 = 15 %; Al2O3 > 0.1 %; additive > 0.1 %; impurities < 1 %, said additive being selected from MnO, MnO2, Fe2O3, CuO, TiO2, Y2O3, Sb2O3, ZnO and mixtures thereof. The invention is suitable for use in microgrinding and microdispersion.

Bille frittée présentant l'analyse chimique suivante, en pourcentages en poids et pour un total de 100 %, ZrO2 + HfO2 : 78 - 85 %, CeO2 : >= 15 % Al2O3 : > 0,1 % Additif : > 0,1 %, Impuretés : < 1 %, l'additif étant choisi parmi MnO, MnO2, Fe2O3, CuO, TiO2, Y2O3, Sb2O3, ZnO et leurs mélanges. Application à du microbroyage et de la microdispersion.

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