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Green preparation method of (Lu/Gd/Y) 3Al5O12 fluorescent ceramic
The invention provides a fluorescent ceramic M3-xAl5O12: xCe < 3 + > prepared by water-based tape casting isostatic pressing, M is one or more of Lu, Gd and Y, and x is more than or equal to 0.005 andless than or equal to 0.2. The ceramic membrane with the thickness of 0.8-10 [mu] m is prepared by adopting a tape casting process, wherein tape casting slurry is prepared by adopting water as a solvent in the tape casting process, adopting polyacrylic acid (PAA) with the content of 0.3-4 wt% as a dispersing agent, adopting polyvinyl alcohol (PVA) with the content of 4-38 wt% as a binder and adopting propylene glycol with the content of 6-40 wt% as a plasticizer, pressing the ceramic membrane obtained by tape casting into fluorescent ceramic blanks with different thicknesses by adopting a laminating-isostatic pressing forming process; and then carrying out rubber discharging, reduction sintering and polishing on the ceramic green body to obtain the fluorescent ceramic. The method is environmentally friendly, simple in process, low in cost, safe to use and suitable for large-scale industrial production.
本发明提供一种水基流延等静压成型制备荧光陶瓷M3‑xAl5O12:xCe3+，其中M为Lu、Gd、Y中的一种或多种，0.005≤x≤0.2。本发明采用流延工艺制备厚度为0.8~10μm的陶瓷膜，其中流延浆料包括：采用水作为流延工艺中的溶剂，采用含量0.3~4wt%聚丙烯酸（PAA）作分散剂，含量4~38wt%聚乙烯醇（PVA）做粘结剂，含量6~40wt%丙二醇做塑性剂。采用叠压‑等静压成型工艺将流延得到的陶瓷膜压成不同厚度的荧光陶瓷坯体；然后将陶瓷坯体进行排胶、还原烧结、抛光获得所述荧光陶瓷。本发明的方法环境友好，工艺简单，成本低，使用安全，适合大规模工业化生产。
Green preparation method of (Lu/Gd/Y) 3Al5O12 fluorescent ceramic
The invention provides a fluorescent ceramic M3-xAl5O12: xCe < 3 + > prepared by water-based tape casting isostatic pressing, M is one or more of Lu, Gd and Y, and x is more than or equal to 0.005 andless than or equal to 0.2. The ceramic membrane with the thickness of 0.8-10 [mu] m is prepared by adopting a tape casting process, wherein tape casting slurry is prepared by adopting water as a solvent in the tape casting process, adopting polyacrylic acid (PAA) with the content of 0.3-4 wt% as a dispersing agent, adopting polyvinyl alcohol (PVA) with the content of 4-38 wt% as a binder and adopting propylene glycol with the content of 6-40 wt% as a plasticizer, pressing the ceramic membrane obtained by tape casting into fluorescent ceramic blanks with different thicknesses by adopting a laminating-isostatic pressing forming process; and then carrying out rubber discharging, reduction sintering and polishing on the ceramic green body to obtain the fluorescent ceramic. The method is environmentally friendly, simple in process, low in cost, safe to use and suitable for large-scale industrial production.
本发明提供一种水基流延等静压成型制备荧光陶瓷M3‑xAl5O12:xCe3+，其中M为Lu、Gd、Y中的一种或多种，0.005≤x≤0.2。本发明采用流延工艺制备厚度为0.8~10μm的陶瓷膜，其中流延浆料包括：采用水作为流延工艺中的溶剂，采用含量0.3~4wt%聚丙烯酸（PAA）作分散剂，含量4~38wt%聚乙烯醇（PVA）做粘结剂，含量6~40wt%丙二醇做塑性剂。采用叠压‑等静压成型工艺将流延得到的陶瓷膜压成不同厚度的荧光陶瓷坯体；然后将陶瓷坯体进行排胶、还原烧结、抛光获得所述荧光陶瓷。本发明的方法环境友好，工艺简单，成本低，使用安全，适合大规模工业化生产。
Green preparation method of (Lu/Gd/Y) 3Al5O12 fluorescent ceramic
一种(Lu/Gd/Y)3Al5O12荧光陶瓷的绿色制备方法
JI CHANGYAN (author) / ZHANG LEI (author) / WEN JIN (author) / PENG YANGXI (author)
2021-02-26
Patent
Electronic Resource
Chinese
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