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One-step tape casting method for preparing high-density fluorescent ceramic
The invention provides a method for preparing high-density fluorescent ceramic by a one-step tape casting method, which comprises the following steps: S1, mixing a powder raw material, an oxygen vacancy eliminating agent, a sintering aid, a solvent and a dispersing agent in proportion, and carrying out ball milling for a period of time to obtain slurry A; the powder raw material is a Ce-doped garnet-based fluorescent material and/or a nitride fluorescent material; the oxygen vacancy eliminating agent comprises one or more of feldspar, kaolin and zeolite; s2, adding a binder, a plasticizer and a homogenizing agent into the slurry A in proportion, and continuously performing ball milling for a period of time to obtain slurry B; s3, filtering the slurry B, carrying out vacuum defoaming to obtain tape-casting slurry, and carrying out tape casting on the tape-casting slurry to obtain a tape-casting green body; s4, the tape casting green body is dried, and rubber discharging treatment is carried out under a certain atmosphere and at a certain temperature; and finally, sintering at high temperature to obtain the high-density fluorescent ceramic. According to the invention, one-step preparation of the fluorescent ceramic with high optical performance and high density is realized.
本发明提供一步流延法制备高致密度荧光陶瓷的方法，包括以下步骤：S1，将粉体原料、氧空位消除剂、烧结助剂、溶剂、分散剂按比例混合，球磨一段时间后得到浆料A；所述粉体原料为Ce掺杂石榴石基荧光材料和/或氮化物荧光材料；所述氧空位消除剂包括长石、高岭土、沸石中的一种或多种；S2，将粘结剂、增塑剂、均化剂按比例加入浆料A中，继续球磨一段时间后得到浆料B；S3，将浆料B过滤，真空除泡后得到流延料浆，将流延料浆进行流延成型得到流延生坯；S4，将流延生坯进行干燥，于一定的气氛下和温度下进行排胶处理；最后在高温下烧结，得到高致密度荧光陶瓷。本发明实现了高光学性能、高致密度荧光陶瓷的一步法制备。
One-step tape casting method for preparing high-density fluorescent ceramic
The invention provides a method for preparing high-density fluorescent ceramic by a one-step tape casting method, which comprises the following steps: S1, mixing a powder raw material, an oxygen vacancy eliminating agent, a sintering aid, a solvent and a dispersing agent in proportion, and carrying out ball milling for a period of time to obtain slurry A; the powder raw material is a Ce-doped garnet-based fluorescent material and/or a nitride fluorescent material; the oxygen vacancy eliminating agent comprises one or more of feldspar, kaolin and zeolite; s2, adding a binder, a plasticizer and a homogenizing agent into the slurry A in proportion, and continuously performing ball milling for a period of time to obtain slurry B; s3, filtering the slurry B, carrying out vacuum defoaming to obtain tape-casting slurry, and carrying out tape casting on the tape-casting slurry to obtain a tape-casting green body; s4, the tape casting green body is dried, and rubber discharging treatment is carried out under a certain atmosphere and at a certain temperature; and finally, sintering at high temperature to obtain the high-density fluorescent ceramic. According to the invention, one-step preparation of the fluorescent ceramic with high optical performance and high density is realized.
本发明提供一步流延法制备高致密度荧光陶瓷的方法，包括以下步骤：S1，将粉体原料、氧空位消除剂、烧结助剂、溶剂、分散剂按比例混合，球磨一段时间后得到浆料A；所述粉体原料为Ce掺杂石榴石基荧光材料和/或氮化物荧光材料；所述氧空位消除剂包括长石、高岭土、沸石中的一种或多种；S2，将粘结剂、增塑剂、均化剂按比例加入浆料A中，继续球磨一段时间后得到浆料B；S3，将浆料B过滤，真空除泡后得到流延料浆，将流延料浆进行流延成型得到流延生坯；S4，将流延生坯进行干燥，于一定的气氛下和温度下进行排胶处理；最后在高温下烧结，得到高致密度荧光陶瓷。本发明实现了高光学性能、高致密度荧光陶瓷的一步法制备。
One-step tape casting method for preparing high-density fluorescent ceramic
一步流延法制备高致密度荧光陶瓷
XIE RONGJUN (author) / PANG QIRUI (author)
2024-07-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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