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Preparation method of porous calcium hexaluminate ceramic with uniform structure
The invention discloses a preparation method of porous calcium hexaluminate ceramic with a uniform structure, which comprises the following steps: CaCO3 powder and boehmite AlOOH powder are taken, the mass ratio of the CaCO3 powder to the boehmite AlOOH powder is 1: 7.2, and the particle size of the boehmite AlOOH powder is 0.1-1 [mu] m; caCO3 powder and boehmite AlOOH powder are mixed to obtain mixed powder, the mixed powder is subjected to wet ball milling in a ZrO2 ball milling medium and an ethanol solution for 12-24 h to obtain slurry, and the mass ratio of the mixed powder to the ZrO2 ball milling medium to the ethanol solution is 1: (1-2): (2-4); the slurry obtained after ball milling is dried for 10 h to 20 h at the temperature ranging from 80 DEG C to 100 DEG C; 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. According to the invention, CO2 and H2O gas released from a starting material are used as intrinsic pore-forming agents, and finally the porous calcium hexaluminate ceramic with a uniform structure is prepared.
本发明公开了一种均匀结构多孔六铝酸钙陶瓷的制备方法，包括以下步骤：取CaCO3粉末和勃姆石AlOOH粉末，CaCO3粉末和勃姆石AlOOH粉末的质量比为1:7.2，所述勃姆石AlOOH粉末的粒径为0.1~1μm；将CaCO3粉末和勃姆石AlOOH粉末混合得到混合粉末，将混合粉末在ZrO2球磨介质和乙醇溶液中湿球磨12~24 h得到浆料，混合粉末：ZrO2球磨介质和乙醇溶液的质量为比1:1~2:2~4；将球磨后的浆料在80~100℃的温度下干燥10~20h；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。本发明从起始材料中释放的CO2和H2O气体作为内在的本征造孔剂，最终制备了均匀结构多孔的六铝酸钙陶瓷。
Preparation method of porous calcium hexaluminate ceramic with uniform structure
The invention discloses a preparation method of porous calcium hexaluminate ceramic with a uniform structure, which comprises the following steps: CaCO3 powder and boehmite AlOOH powder are taken, the mass ratio of the CaCO3 powder to the boehmite AlOOH powder is 1: 7.2, and the particle size of the boehmite AlOOH powder is 0.1-1 [mu] m; caCO3 powder and boehmite AlOOH powder are mixed to obtain mixed powder, the mixed powder is subjected to wet ball milling in a ZrO2 ball milling medium and an ethanol solution for 12-24 h to obtain slurry, and the mass ratio of the mixed powder to the ZrO2 ball milling medium to the ethanol solution is 1: (1-2): (2-4); the slurry obtained after ball milling is dried for 10 h to 20 h at the temperature ranging from 80 DEG C to 100 DEG C; 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. According to the invention, CO2 and H2O gas released from a starting material are used as intrinsic pore-forming agents, and finally the porous calcium hexaluminate ceramic with a uniform structure is prepared.
本发明公开了一种均匀结构多孔六铝酸钙陶瓷的制备方法，包括以下步骤：取CaCO3粉末和勃姆石AlOOH粉末，CaCO3粉末和勃姆石AlOOH粉末的质量比为1:7.2，所述勃姆石AlOOH粉末的粒径为0.1~1μm；将CaCO3粉末和勃姆石AlOOH粉末混合得到混合粉末，将混合粉末在ZrO2球磨介质和乙醇溶液中湿球磨12~24 h得到浆料，混合粉末：ZrO2球磨介质和乙醇溶液的质量为比1:1~2:2~4；将球磨后的浆料在80~100℃的温度下干燥10~20h；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。本发明从起始材料中释放的CO2和H2O气体作为内在的本征造孔剂，最终制备了均匀结构多孔的六铝酸钙陶瓷。
Preparation method of porous calcium hexaluminate ceramic with uniform structure
一种均匀结构多孔六铝酸钙陶瓷的制备方法
YIN BO (author) / FAN CHANGLONG (author) / ZHENG YIFENG (author) / WU WEI (author) / MAO XUMIN (author) / SONG XIAOCHUN (author)
2023-06-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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