A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of compact calcium hexaluminate ceramic
The invention discloses a preparation method of compact calcium hexaluminate ceramic, which comprises the following steps: Al2O3 powder, CaCO3 powder, BaO powder and TiO2 powder are taken as raw materials, and the mass ratio of the Al2O3 powder to the CaCO3 powder to the BaO powder to the TiO2 powder is 6.12: 1: (0.07-0.2): (0.07-0.28); the preparation method comprises the following steps: ball-milling raw materials in an ethanol solution for 12-24 hours by taking alumina balls as a ball-milling medium to obtain ball-milled slurry; drying the ball-milled slurry at 90-100 DEG C for 12-24 hours to obtain mixed powder; sieving the dried mixed powder with a 80-100-mesh sieve to obtain sieved powder, performing dry pressing on the sieved powder, calcining in a high-temperature furnace, cooling to room temperature along with the furnace after calcining, and taking out to obtain a finished product. The Ba and Ti co-doping method that Ca < 2 + > is replaced by Ba < 2 + > and Al < 3 + > is replaced by Ti < 4 + > is adopted, so that the density of the CA6 is improved, and the CA6 can be applied to the industries of steel, petrochemical engineering and the like.
本发明公开了一种致密六铝酸钙陶瓷的制备方法，包括以下步骤：取Al2O3粉末、CaCO3粉末、BaO粉末、TiO2粉末为原料，所述Al2O3粉末、CaCO3粉末、BaO粉末、TiO2粉末的质量比为6.12:1:0.07~0.2:0.07~0.28；将原料以氧化铝球为球磨介质，在乙醇溶液中球磨12~24h得到球磨浆料；将球磨浆料在90~100℃下干燥12~24h得到混合粉末；将干燥后的混合粉末经80~100目筛得到过筛粉末，将过筛粉末干压成型，然后在高温炉中煅烧，煅烧后随炉冷却至室温后取出，制得成品。本发明中通过使用Ba2+取代Ca2+和Ti4+取代Al3+的Ba和Ti共掺杂的方法，提高了CA6的致密度，可在钢铁、石化等行业应用。
Preparation method of compact calcium hexaluminate ceramic
The invention discloses a preparation method of compact calcium hexaluminate ceramic, which comprises the following steps: Al2O3 powder, CaCO3 powder, BaO powder and TiO2 powder are taken as raw materials, and the mass ratio of the Al2O3 powder to the CaCO3 powder to the BaO powder to the TiO2 powder is 6.12: 1: (0.07-0.2): (0.07-0.28); the preparation method comprises the following steps: ball-milling raw materials in an ethanol solution for 12-24 hours by taking alumina balls as a ball-milling medium to obtain ball-milled slurry; drying the ball-milled slurry at 90-100 DEG C for 12-24 hours to obtain mixed powder; sieving the dried mixed powder with a 80-100-mesh sieve to obtain sieved powder, performing dry pressing on the sieved powder, calcining in a high-temperature furnace, cooling to room temperature along with the furnace after calcining, and taking out to obtain a finished product. The Ba and Ti co-doping method that Ca < 2 + > is replaced by Ba < 2 + > and Al < 3 + > is replaced by Ti < 4 + > is adopted, so that the density of the CA6 is improved, and the CA6 can be applied to the industries of steel, petrochemical engineering and the like.
本发明公开了一种致密六铝酸钙陶瓷的制备方法，包括以下步骤：取Al2O3粉末、CaCO3粉末、BaO粉末、TiO2粉末为原料，所述Al2O3粉末、CaCO3粉末、BaO粉末、TiO2粉末的质量比为6.12:1:0.07~0.2:0.07~0.28；将原料以氧化铝球为球磨介质，在乙醇溶液中球磨12~24h得到球磨浆料；将球磨浆料在90~100℃下干燥12~24h得到混合粉末；将干燥后的混合粉末经80~100目筛得到过筛粉末，将过筛粉末干压成型，然后在高温炉中煅烧，煅烧后随炉冷却至室温后取出，制得成品。本发明中通过使用Ba2+取代Ca2+和Ti4+取代Al3+的Ba和Ti共掺杂的方法，提高了CA6的致密度，可在钢铁、石化等行业应用。
Preparation method of compact calcium hexaluminate ceramic
一种致密六铝酸钙陶瓷的制备方法
YIN BO (author) / FAN CHANGLONG (author) / ZHENG YIFENG (author) / MAO XUMIN (author) / JIANG XU (author) / XU YONG (author)
2023-06-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Calcium hexaluminate/aluminum titanate porous ceramic and preparation method thereof
| European Patent Office | 2021
Preparation method of porous calcium hexaluminate ceramic with uniform structure
| European Patent Office | 2023
Calcium hexaluminate ceramic with biological activity and preparation method thereof
| European Patent Office | 2021
High-purity compact calcium hexaluminate series refractory material and preparation method thereof
| European Patent Office | 2022