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A platform for research: civil engineering, architecture and urbanism
Ceramic corundum grinding material as well as preparation method and application thereof
The invention discloses a ceramic corundum grinding material and a preparation method thereof. The material is prepared by the following steps of: preparing a precursor by taking pseudo-boehmite as a raw material, and adding a composite additive and a seed crystal alpha-Al2O3; and then carrying out ball milling, drying, crushing, grading and sintering. the composite additive is prepared from La2O3, TiO2, SiO2, ZrO2, Y2O3 and CaO. The prepared ceramic corundum grinding material is in the shape of polyhedral hexagonal three-dimensional equiaxed grains, the average size of the grains is between 300 and 950nm, the microhardness is between 20 and 23.5 GPa, and the density is between 3.90 and 3.98 g/cm < 3 >. The material can be used in the wear-resistant fields such as heavy-load and precise grinding.
本发明公开了一种陶瓷刚玉磨料及其制备方法。该材料在以拟薄水铝石为原料制备前驱体中外加复合添加剂和晶种α‑Al2O3，再进行球磨、干燥、破碎分级和烧结制备而成；复合添加剂包含：La2O3、TiO2、SiO2、ZrO2、Y2O3、CaO。制备得到的陶瓷刚玉磨料为多面六边形立体等轴晶粒的形貌，晶粒平均尺寸在300～950nm之间，显微硬度在20～23.5GPa之间，密度在3.90～3.98g/cm3之间。可用于重负荷以及精密磨削等耐磨领域。
Ceramic corundum grinding material as well as preparation method and application thereof
The invention discloses a ceramic corundum grinding material and a preparation method thereof. The material is prepared by the following steps of: preparing a precursor by taking pseudo-boehmite as a raw material, and adding a composite additive and a seed crystal alpha-Al2O3; and then carrying out ball milling, drying, crushing, grading and sintering. the composite additive is prepared from La2O3, TiO2, SiO2, ZrO2, Y2O3 and CaO. The prepared ceramic corundum grinding material is in the shape of polyhedral hexagonal three-dimensional equiaxed grains, the average size of the grains is between 300 and 950nm, the microhardness is between 20 and 23.5 GPa, and the density is between 3.90 and 3.98 g/cm < 3 >. The material can be used in the wear-resistant fields such as heavy-load and precise grinding.
本发明公开了一种陶瓷刚玉磨料及其制备方法。该材料在以拟薄水铝石为原料制备前驱体中外加复合添加剂和晶种α‑Al2O3，再进行球磨、干燥、破碎分级和烧结制备而成；复合添加剂包含：La2O3、TiO2、SiO2、ZrO2、Y2O3、CaO。制备得到的陶瓷刚玉磨料为多面六边形立体等轴晶粒的形貌，晶粒平均尺寸在300～950nm之间，显微硬度在20～23.5GPa之间，密度在3.90～3.98g/cm3之间。可用于重负荷以及精密磨削等耐磨领域。
Ceramic corundum grinding material as well as preparation method and application thereof
一种陶瓷刚玉磨料及其制备方法和应用
ZOU LINGFENG (author) / LI ZHUAN (author) / ZHAO JIONG (author) / ZOU HUIJING (author)
2021-12-28
Patent
Electronic Resource
Chinese
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