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A sintered ball having: the following crystallographic composition, in mass percentages on the basis of the total mass of the crystallised phases and for a total of 100%: zircon < 25%; 50% <= cubic zirconia + quadratic zirconia <= 95%, the cubic zirconia content being greater than 50%, the cubic zirconia content being the mass ratio (cubic zirconia / (cubic zirconia + quadratic zirconia)); 0 <= monoclinic zirconia <= (10 - 0.2* quadratic zirconia)%; 5% <= corindon <= 50%; crystallised phases other than zircon, cubic zirconia, quadratic zirconia, monoclinic zirconia and corindon < 10%; the following chemical composition, in mass percentages on the basis of oxides: 34% <= ZrO2 + HfO2, ZrO2 + HfO2 being the complement to form 100%; HfO2 <= 4.0%; 0.5% <= SiO2 <= 14.1%; 4.5% <= Al2O3 <= 49.6%; 2.75% <= Y2O3 <= 22.8%; MgO <= 5%; CaO <= 2%; oxides other than ZrO2, HfO2, SiO2, Al2O3, MgO, CaO and Y2O3 < 5.0%.
一种烧结的珠粒,具有:‑以下晶体组成,以基于结晶相总重量的重量百分比计且总计为100%:‑锆石<25%;‑50%≤立方氧化锆+四方氧化锆≤95%,所述立方氧化锆的含量大于50%,所述立方氧化锆的含量为(立方氧化锆/(立方氧化锆+四方氧化锆)的重量比;‑0≤单斜氧化锆≤(10‑0.2×四方氧化锆)%;‑5%≤刚玉≤50%;‑除锆石、立方氧化锆、四方氧化锆、单斜氧化锆和刚玉之外的结晶相<10%;‑以下化学组成,以基于氧化物的重量百分比计:34%≤ZrO2+HfO2,ZrO2+HfO2为至100%的余量;HfO2≤4.0%;0.5%≤SiO2≤14.1%;4.5%≤Al2O3≤49.6%;2.75%≤Y2O3≤22.8%;MgO≤5%;CaO≤2%;除ZrO2、HfO2、SiO2、Al2O3、MgO、CaO和Y2O3之外的氧化物<5.0%。
A sintered ball having: the following crystallographic composition, in mass percentages on the basis of the total mass of the crystallised phases and for a total of 100%: zircon < 25%; 50% <= cubic zirconia + quadratic zirconia <= 95%, the cubic zirconia content being greater than 50%, the cubic zirconia content being the mass ratio (cubic zirconia / (cubic zirconia + quadratic zirconia)); 0 <= monoclinic zirconia <= (10 - 0.2* quadratic zirconia)%; 5% <= corindon <= 50%; crystallised phases other than zircon, cubic zirconia, quadratic zirconia, monoclinic zirconia and corindon < 10%; the following chemical composition, in mass percentages on the basis of oxides: 34% <= ZrO2 + HfO2, ZrO2 + HfO2 being the complement to form 100%; HfO2 <= 4.0%; 0.5% <= SiO2 <= 14.1%; 4.5% <= Al2O3 <= 49.6%; 2.75% <= Y2O3 <= 22.8%; MgO <= 5%; CaO <= 2%; oxides other than ZrO2, HfO2, SiO2, Al2O3, MgO, CaO and Y2O3 < 5.0%.
一种烧结的珠粒,具有:‑以下晶体组成,以基于结晶相总重量的重量百分比计且总计为100%:‑锆石<25%;‑50%≤立方氧化锆+四方氧化锆≤95%,所述立方氧化锆的含量大于50%,所述立方氧化锆的含量为(立方氧化锆/(立方氧化锆+四方氧化锆)的重量比;‑0≤单斜氧化锆≤(10‑0.2×四方氧化锆)%;‑5%≤刚玉≤50%;‑除锆石、立方氧化锆、四方氧化锆、单斜氧化锆和刚玉之外的结晶相<10%;‑以下化学组成,以基于氧化物的重量百分比计:34%≤ZrO2+HfO2,ZrO2+HfO2为至100%的余量;HfO2≤4.0%;0.5%≤SiO2≤14.1%;4.5%≤Al2O3≤49.6%;2.75%≤Y2O3≤22.8%;MgO≤5%;CaO≤2%;除ZrO2、HfO2、SiO2、Al2O3、MgO、CaO和Y2O3之外的氧化物<5.0%。
SINTERED ALUMINA-ZIRCONIA BALLS
烧结的氧化铝-氧化锆球
NONNET EMMANUEL (author)
2021-11-05
Patent
Electronic Resource
Chinese