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Dispersible aluminum oxide as well as preparation method and application thereof
The invention particularly relates to dispersible aluminum oxide and a preparation method and application thereof, and belongs to the technical field of aluminum oxide micro-powder.The method comprises the steps that mixing alpha-Al2O3 micro-powder, a sintering aid and a dispersing agent, and obtaining a mixture; wherein the mixture comprises the following components in percentage by mass: 60%-80% of alpha-Al2O3 micro powder, 10%-30% of the sintering aid and 5%-15% of the dispersing agent; mixing the mixture with a solvent to obtain a slurry; n whereithe solvent accounts for 50%-70% of the mixture; and carrying out spray drying on the slurry to obtain the dispersive aluminum oxide micro powder. When the prepared dispersive aluminum oxide is applied to an aluminum oxide slurry system, the solid content of aluminum oxide slurry can reach 75%, and meanwhile, the sintering temperature of aluminum oxide ceramics is reduced by 50 DEG C or above.
本发明特别涉及一种分散性氧化铝及其制备方法和应用，属于氧化铝微粉技术领域，方法包括：将α‑Al2O3微粉、助烧剂和分散剂进行混合，获得混合料；以质量分数计，所述混合料的成分包括：α‑Al2O3微粉60％‑80％、助烧剂10％‑30％和分散剂5％‑15％；将所述混合料和溶剂混合，获得浆料；所述溶剂占所述混合料的50％‑70％；将所述浆料进行喷雾干燥，获得分散性氧化铝微粉。制备的分散性氧化铝在氧化铝浆料体系中应用，能使氧化铝浆料固含量达到75％，同时降低氧化铝陶瓷烧结温度50℃以上。
Dispersible aluminum oxide as well as preparation method and application thereof
The invention particularly relates to dispersible aluminum oxide and a preparation method and application thereof, and belongs to the technical field of aluminum oxide micro-powder.The method comprises the steps that mixing alpha-Al2O3 micro-powder, a sintering aid and a dispersing agent, and obtaining a mixture; wherein the mixture comprises the following components in percentage by mass: 60%-80% of alpha-Al2O3 micro powder, 10%-30% of the sintering aid and 5%-15% of the dispersing agent; mixing the mixture with a solvent to obtain a slurry; n whereithe solvent accounts for 50%-70% of the mixture; and carrying out spray drying on the slurry to obtain the dispersive aluminum oxide micro powder. When the prepared dispersive aluminum oxide is applied to an aluminum oxide slurry system, the solid content of aluminum oxide slurry can reach 75%, and meanwhile, the sintering temperature of aluminum oxide ceramics is reduced by 50 DEG C or above.
本发明特别涉及一种分散性氧化铝及其制备方法和应用，属于氧化铝微粉技术领域，方法包括：将α‑Al2O3微粉、助烧剂和分散剂进行混合，获得混合料；以质量分数计，所述混合料的成分包括：α‑Al2O3微粉60％‑80％、助烧剂10％‑30％和分散剂5％‑15％；将所述混合料和溶剂混合，获得浆料；所述溶剂占所述混合料的50％‑70％；将所述浆料进行喷雾干燥，获得分散性氧化铝微粉。制备的分散性氧化铝在氧化铝浆料体系中应用，能使氧化铝浆料固含量达到75％，同时降低氧化铝陶瓷烧结温度50℃以上。
Dispersible aluminum oxide as well as preparation method and application thereof
一种分散性氧化铝及其制备方法和应用
LI XIAOXING (author) / LI JIANZHONG (author) / ZHANG YONG (author) / WANG FEI (author)
2021-08-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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