Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sodium bismuth titanate-based ferroelectric ceramic gel casting preparation method
The invention discloses a sodium bismuth titanate-based ferroelectric ceramic gel casting preparation method, which comprises the following steps: dissolving an organic monomer acrylamide and a cross-linking agent N, N '-methylene bisacrylamide in water according to a mass ratio of (12: 1)-(24: 1) to obtain a premixed solution with the concentration of 5wt.%-20wt.%; adding sodium bismuth titanate-based ceramic powder and a dispersing agent into the premixed solution, wherein the mass of the dispersing agent is 1-8 wt.% of the mass of the ceramic powder, and the solid content of the ceramic powder is 40-60 vol.%; adding a catalyst and an initiator solution with the solution concentration being 1%-8% into a suspension solution, obtaining a ceramic slurry, wherein the mass ratio of an initiator to the premixed solution is 5 wt.%-30 wt.%, and the mass ratio of the catalyst to the premixed solution is 1 wt.%-10 wt.%; injecting the ceramic slurry into a mold for curing to obtain a ceramic blank; drying the ceramic blank under the environment that the temperature is 15-20 DEG C and the humidity is 80%-90%; carrying out blank body glue discharging at the environment heating rate of 0.3 DEG C/min to 0.5 DEG C/min, and ceramic sintering at the temperature of 1030 DEG C to 1080 DEG C. According to the preparation method, agglomeration of particles can be effectively controlled, and the ceramic which is uniform in component, good in compactness, large in size and complex in shape is prepared.
本发明公开了一种钛酸铋钠基铁电陶瓷凝胶注模成型制备方法：将有机单体丙烯酰胺与交联剂N,N’‑亚甲基双丙烯酰胺按照质量比为12:1～24:1溶于水，得到浓度为5wt.％～20wt.％的预混液；向预混液中加入钛酸铋钠基陶瓷粉体和分散剂，分散剂的质量为陶瓷粉体质量的1wt.％～8wt.％，陶瓷粉体的固含量为40vol.％～60vol.％；将催化剂和溶液浓度为1％～8％的引发剂溶液加入悬浮体溶液，得到陶瓷浆料，引发剂与预混液的质量比为5wt.％～30wt.％，催化剂与预混液的质量比为1wt.％～10wt.％；将陶瓷浆料注入模具进行固化，得到陶瓷胚体；在温度为15℃～20℃，湿度为80％～90％环境下进行胚体干燥；在0.3℃/min～0.5℃/min的环境升温速率下进行胚体排胶，在1030℃～1080℃的温度下进行陶瓷烧结。本申请其能有效地控制颗粒的团聚，制备出组分均匀、致密性好、尺寸大、形状复杂的陶瓷。
Sodium bismuth titanate-based ferroelectric ceramic gel casting preparation method
The invention discloses a sodium bismuth titanate-based ferroelectric ceramic gel casting preparation method, which comprises the following steps: dissolving an organic monomer acrylamide and a cross-linking agent N, N '-methylene bisacrylamide in water according to a mass ratio of (12: 1)-(24: 1) to obtain a premixed solution with the concentration of 5wt.%-20wt.%; adding sodium bismuth titanate-based ceramic powder and a dispersing agent into the premixed solution, wherein the mass of the dispersing agent is 1-8 wt.% of the mass of the ceramic powder, and the solid content of the ceramic powder is 40-60 vol.%; adding a catalyst and an initiator solution with the solution concentration being 1%-8% into a suspension solution, obtaining a ceramic slurry, wherein the mass ratio of an initiator to the premixed solution is 5 wt.%-30 wt.%, and the mass ratio of the catalyst to the premixed solution is 1 wt.%-10 wt.%; injecting the ceramic slurry into a mold for curing to obtain a ceramic blank; drying the ceramic blank under the environment that the temperature is 15-20 DEG C and the humidity is 80%-90%; carrying out blank body glue discharging at the environment heating rate of 0.3 DEG C/min to 0.5 DEG C/min, and ceramic sintering at the temperature of 1030 DEG C to 1080 DEG C. According to the preparation method, agglomeration of particles can be effectively controlled, and the ceramic which is uniform in component, good in compactness, large in size and complex in shape is prepared.
本发明公开了一种钛酸铋钠基铁电陶瓷凝胶注模成型制备方法：将有机单体丙烯酰胺与交联剂N,N’‑亚甲基双丙烯酰胺按照质量比为12:1～24:1溶于水，得到浓度为5wt.％～20wt.％的预混液；向预混液中加入钛酸铋钠基陶瓷粉体和分散剂，分散剂的质量为陶瓷粉体质量的1wt.％～8wt.％，陶瓷粉体的固含量为40vol.％～60vol.％；将催化剂和溶液浓度为1％～8％的引发剂溶液加入悬浮体溶液，得到陶瓷浆料，引发剂与预混液的质量比为5wt.％～30wt.％，催化剂与预混液的质量比为1wt.％～10wt.％；将陶瓷浆料注入模具进行固化，得到陶瓷胚体；在温度为15℃～20℃，湿度为80％～90％环境下进行胚体干燥；在0.3℃/min～0.5℃/min的环境升温速率下进行胚体排胶，在1030℃～1080℃的温度下进行陶瓷烧结。本申请其能有效地控制颗粒的团聚，制备出组分均匀、致密性好、尺寸大、形状复杂的陶瓷。
Sodium bismuth titanate-based ferroelectric ceramic gel casting preparation method
一种钛酸铋钠基铁电陶瓷凝胶注模成型制备方法
XIAO WENRONG (Autor:in) / DU QUANPEI (Autor:in) / JIANG SHENGLIN (Autor:in) / ZHANG GUANGZU (Autor:in) / CEN FANGJIE (Autor:in) / YU XIE (Autor:in)
18.02.2022
Patent
Elektronische Ressource
Chinesisch
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