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Sintered zirconia balls
A sintered bead having:-the following chemical composition, in mass percent on the basis of oxides:-ZrO2 + HfO2 + Y2O3 + CeO2: the balance up to 100%; 0% < = Al2O3 < = 1.5%; caO < = 2%; an oxide other than ZrO2, HfO2, Y2O3, CeO2, Al2O3 and CaO: < = 5%; the present invention relates to a zirconia ceramic comprising-a ZrO2, HfO2, Y2O3 and CeO2 in an amount such that 1.8% < = Y2O3 < = 2.5% and 0.1% < = CeO2 < = 0.9%, in molar percentages based on the sum of ZrO2, HfO2, Y2O3 and CeO2, and-the following crystalline phases, in mass percentages based on crystalline phases and in total 100%:-stabilized zirconia: the balance to 100%; monoclinic zirconium oxide: < = 10%; -a crystalline phase other than stabilized and monoclinic zirconia: lt; 7%.
一种烧结珠粒，具有：‑以下化学组成，以基于氧化物的质量百分比计：‑ZrO2+HfO2+Y2O3+CeO2：至100％的余量；‑0％≤Al2O3≤1.5％；‑CaO≤2％；‑除了ZrO2、HfO2、Y2O3、CeO2、Al2O3和CaO之外的氧化物：≤5％；Y2O3和CeO2的含量使得1.8％≤Y2O3≤2.5％且0.1％≤CeO2≤0.9％，以基于ZrO2、HfO2、Y2O3和CeO2总和的摩尔百分比计，以及‑以下晶相，以基于晶相且总共为100％的质量百分比计：‑稳定性氧化锆：至100％的余量；‑单斜氧化锆：≤10％；‑除了稳定性氧化锆和单斜氧化锆之外的晶相：<7％。
Sintered zirconia balls
A sintered bead having:-the following chemical composition, in mass percent on the basis of oxides:-ZrO2 + HfO2 + Y2O3 + CeO2: the balance up to 100%; 0% < = Al2O3 < = 1.5%; caO < = 2%; an oxide other than ZrO2, HfO2, Y2O3, CeO2, Al2O3 and CaO: < = 5%; the present invention relates to a zirconia ceramic comprising-a ZrO2, HfO2, Y2O3 and CeO2 in an amount such that 1.8% < = Y2O3 < = 2.5% and 0.1% < = CeO2 < = 0.9%, in molar percentages based on the sum of ZrO2, HfO2, Y2O3 and CeO2, and-the following crystalline phases, in mass percentages based on crystalline phases and in total 100%:-stabilized zirconia: the balance to 100%; monoclinic zirconium oxide: < = 10%; -a crystalline phase other than stabilized and monoclinic zirconia: lt; 7%.
一种烧结珠粒，具有：‑以下化学组成，以基于氧化物的质量百分比计：‑ZrO2+HfO2+Y2O3+CeO2：至100％的余量；‑0％≤Al2O3≤1.5％；‑CaO≤2％；‑除了ZrO2、HfO2、Y2O3、CeO2、Al2O3和CaO之外的氧化物：≤5％；Y2O3和CeO2的含量使得1.8％≤Y2O3≤2.5％且0.1％≤CeO2≤0.9％，以基于ZrO2、HfO2、Y2O3和CeO2总和的摩尔百分比计，以及‑以下晶相，以基于晶相且总共为100％的质量百分比计：‑稳定性氧化锆：至100％的余量；‑单斜氧化锆：≤10％；‑除了稳定性氧化锆和单斜氧化锆之外的晶相：<7％。
Sintered zirconia balls
烧结的氧化锆球
LINDINGER EDMUND (author) / WEISS FABIAN (author)
2023-04-07
Patent
Electronic Resource
Chinese
| European Patent Office | 2025