Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sintered zirconia beads
The invention relates to a sintered bead having: the following chemical composition, in weight percentages on the basis of the oxides: ZrO2 + HfO2 + Y2O3 + CeO2: the balance up to 100%; 0% < = Al2O3 < = 1.5%; caO < = 2%; an oxide different from ZrO2, HfO2, Y2O3, CeO2, Al2O3 and CaO: < = 5%; the concentrations of Y2O3 and CeO2, in molar percentages based on the sum of ZrO2, HfO2, Y2O3 and CeO2, are such that 1.3% < = Y2O3 < = 2.5%, in particular 1.3% < = Y2O3lt; the invention relates to a zirconia ceramic comprising-a crystalline phase comprising-1.8%, and 0.1% < = CeO2 < = 1.7%, in particular 0.5% < = CeO2 < = 1.7%, in particular 0.9% < CeO2 < = 1.7%, and-the following crystalline phases, in percentage by weight on the basis of the crystalline phase and in total 100%:-stabilized zirconia: the balance to 100%; monoclinic zirconium oxide: < = 15%; -a crystalline phase different from the stable zirconia and monoclinic zirconia: lt; 7%, with the proviso that:-Y2O3lt; 1.8%, with the proviso that 0.5% < = CeO2, and/or-0.9% lt; ceO2 < = 1.7%, and/or-10% lt; and not more than 15% of monoclinic zirconium oxide.
本发明涉及一种烧结珠粒，其具有:‑以下化学组成，以基于氧化物的重量百分比计：‑ZrO2+HfO2+Y2O3+CeO2：至100％的余量；‑0％≤Al2O3≤1.5％；‑CaO≤2％；‑不同于ZrO2、HfO2、Y2O3、CeO2、Al2O3和CaO的氧化物：≤5％；以基于ZrO2、HfO2、Y2O3和CeO2的总和的摩尔百分比计，Y2O3和CeO2的浓度使得1.3％≤Y2O3≤2.5％、特别地1.3％≤Y2O3<1.8％，且0.1％≤CeO2≤1.7％、特别地0.5％≤CeO2≤1.7％、特别地0.9％＜CeO2≤1.7％，和‑以下结晶相，以基于结晶相的重量百分比计且总计为100％：‑稳定的氧化锆：至100％的余量；‑单斜氧化锆：≤15％；‑不同于稳定的氧化锆和单斜氧化锆的结晶相：<7％，条件是：‑Y2O3<1.8％，条件是0.5％≤CeO2，和/或‑0.9％<单斜氧化锆≤15％。
Sintered zirconia beads
The invention relates to a sintered bead having: the following chemical composition, in weight percentages on the basis of the oxides: ZrO2 + HfO2 + Y2O3 + CeO2: the balance up to 100%; 0% < = Al2O3 < = 1.5%; caO < = 2%; an oxide different from ZrO2, HfO2, Y2O3, CeO2, Al2O3 and CaO: < = 5%; the concentrations of Y2O3 and CeO2, in molar percentages based on the sum of ZrO2, HfO2, Y2O3 and CeO2, are such that 1.3% < = Y2O3 < = 2.5%, in particular 1.3% < = Y2O3lt; the invention relates to a zirconia ceramic comprising-a crystalline phase comprising-1.8%, and 0.1% < = CeO2 < = 1.7%, in particular 0.5% < = CeO2 < = 1.7%, in particular 0.9% < CeO2 < = 1.7%, and-the following crystalline phases, in percentage by weight on the basis of the crystalline phase and in total 100%:-stabilized zirconia: the balance to 100%; monoclinic zirconium oxide: < = 15%; -a crystalline phase different from the stable zirconia and monoclinic zirconia: lt; 7%, with the proviso that:-Y2O3lt; 1.8%, with the proviso that 0.5% < = CeO2, and/or-0.9% lt; ceO2 < = 1.7%, and/or-10% lt; and not more than 15% of monoclinic zirconium oxide.
本发明涉及一种烧结珠粒，其具有:‑以下化学组成，以基于氧化物的重量百分比计：‑ZrO2+HfO2+Y2O3+CeO2：至100％的余量；‑0％≤Al2O3≤1.5％；‑CaO≤2％；‑不同于ZrO2、HfO2、Y2O3、CeO2、Al2O3和CaO的氧化物：≤5％；以基于ZrO2、HfO2、Y2O3和CeO2的总和的摩尔百分比计，Y2O3和CeO2的浓度使得1.3％≤Y2O3≤2.5％、特别地1.3％≤Y2O3<1.8％，且0.1％≤CeO2≤1.7％、特别地0.5％≤CeO2≤1.7％、特别地0.9％＜CeO2≤1.7％，和‑以下结晶相，以基于结晶相的重量百分比计且总计为100％：‑稳定的氧化锆：至100％的余量；‑单斜氧化锆：≤15％；‑不同于稳定的氧化锆和单斜氧化锆的结晶相：<7％，条件是：‑Y2O3<1.8％，条件是0.5％≤CeO2，和/或‑0.9％<单斜氧化锆≤15％。
Sintered zirconia beads
烧结氧化锆珠粒
BEAUDONNET ANNE-LAURE (Autor:in) / BENAMEUR NASSIRA (Autor:in)
28.06.2024
Patent
Elektronische Ressource
Chinesisch
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