Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sintered molded body of ceramic made of sialon material, raw material mixture and production thereof
The invention relates to a sintered molded body based on beta-sialon and 15R-sialon, which has a high cutting performance as a cutting material relative to a workpiece made of a nickel-based alloy or a heat-resistant superalloy (HRSA). To this end, a sintered molded body of a ceramic is shown, said sintered molded body having a sialon phase and an amorphous or partially crystalline grain boundary phase. The sialon phase has a proportion of 15R-sialon polymorphs of 20% by weight to 80% by weight. The amorphous or partially crystalline grain boundary phase optionally comprises Yb-Al garnet and accounts for up to 15% by weight of the entire sintered molded body. The sintered molded body is produced from an inorganic raw material mixture comprising: 40 wt% to 57 wt% of Si3N4; 40% to 55% by weight of a mixture of AlN and Al2O3, wherein the ratio of Al2O3 to AlN is in the range of 1 to 1.5: 1; and 3 wt% to 5 wt% of Yb2O3 as a sintering aid.
本发明涉及一种基于β‑塞隆以及15R‑塞隆的烧结成型体，所述烧结成型体作为切割材料相对于由镍基合金或耐热超合金(HRSA)构成的工件具有高的切割表现。为此示出陶瓷的烧结成型体，所述烧结成型体具有塞隆相和无定形的或部分结晶的晶界相。塞隆相具有份额为20重量％至80重量％的份额的15R‑赛隆多型体。无定形的或部分结晶的晶界相可选地包括Yb‑Al石榴石，并且共计为整个烧结成型体的最多15重量％。烧结成型体由无机的原料混合物制造，所述原料混合物包括：40重量％至57重量％的Si3N4；40重量％至55重量％的由AlN和Al2O3构成的混合物，其中Al2O3与AlN的比在1至1.5:1的范围内；和3重量％至5重量％的作为烧结助剂的Yb2O3。
Sintered molded body of ceramic made of sialon material, raw material mixture and production thereof
The invention relates to a sintered molded body based on beta-sialon and 15R-sialon, which has a high cutting performance as a cutting material relative to a workpiece made of a nickel-based alloy or a heat-resistant superalloy (HRSA). To this end, a sintered molded body of a ceramic is shown, said sintered molded body having a sialon phase and an amorphous or partially crystalline grain boundary phase. The sialon phase has a proportion of 15R-sialon polymorphs of 20% by weight to 80% by weight. The amorphous or partially crystalline grain boundary phase optionally comprises Yb-Al garnet and accounts for up to 15% by weight of the entire sintered molded body. The sintered molded body is produced from an inorganic raw material mixture comprising: 40 wt% to 57 wt% of Si3N4; 40% to 55% by weight of a mixture of AlN and Al2O3, wherein the ratio of Al2O3 to AlN is in the range of 1 to 1.5: 1; and 3 wt% to 5 wt% of Yb2O3 as a sintering aid.
本发明涉及一种基于β‑塞隆以及15R‑塞隆的烧结成型体，所述烧结成型体作为切割材料相对于由镍基合金或耐热超合金(HRSA)构成的工件具有高的切割表现。为此示出陶瓷的烧结成型体，所述烧结成型体具有塞隆相和无定形的或部分结晶的晶界相。塞隆相具有份额为20重量％至80重量％的份额的15R‑赛隆多型体。无定形的或部分结晶的晶界相可选地包括Yb‑Al石榴石，并且共计为整个烧结成型体的最多15重量％。烧结成型体由无机的原料混合物制造，所述原料混合物包括：40重量％至57重量％的Si3N4；40重量％至55重量％的由AlN和Al2O3构成的混合物，其中Al2O3与AlN的比在1至1.5:1的范围内；和3重量％至5重量％的作为烧结助剂的Yb2O3。
Sintered molded body of ceramic made of sialon material, raw material mixture and production thereof
由塞隆材料构成的陶瓷的烧结成型体、其原料混合物和制造
NEMLAVA SANDRA (Autor:in) / DIETRICH VOLKER (Autor:in) / STAHL MORITZ (Autor:in)
30.08.2024
Patent
Elektronische Ressource
Chinesisch
A SiAlON CERAMIC MATERIAL MIXTURE AND CERAMIC COMPACT PRODUCTION METHOD USING THE SAID MATERIAL
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