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Silicon oxide ceramic core and preparation method thereof
The invention discloses a silicon oxide ceramic core and a preparation method thereof.The preparation method of the silicon oxide ceramic core comprises the following steps that ceramic slurry is prepared, the ceramic slurry comprises ceramic particles, and the ceramic particles comprise silicon oxide and silicon nitride; based on the ceramic slurry, preparing a ceramic matrix blank through photocuring 3D printing; pre-sintering the ceramic matrix green body to obtain a ceramic matrix; preparing an auxiliary agent solution, dipping the auxiliary agent solution into the ceramic matrix, and then carrying out a heating reaction; then sintering to obtain a silicon oxide ceramic core; the problem that in the process of preparing the silicon oxide ceramic core from silicon oxide ceramic in a photocuring 3D printing mode, the relative refractive index of ceramic slurry is low, and consequently the scattering phenomenon is likely to happen is solved, and therefore reduction of the forming precision is avoided; and meanwhile, the problem that the surface of a casting piece is not smooth due to high pores when the ceramic core is cast is solved.
本发明公开了一种氧化硅陶瓷型芯及其制备方法，所述氧化硅陶瓷型芯制备方法，包括以下步骤：制备陶瓷料浆，所述陶瓷料浆包括陶瓷颗粒，所述陶瓷颗粒包括氧化硅、氮化硅；基于所述陶瓷料浆，通过光固化3D打印制备陶瓷基体坯体；将陶瓷基体坯体进行预烧结得到陶瓷基体；制备助剂溶液，将助剂溶液浸渍到陶瓷基体内，然后进行加热反应；然后进行烧结，得到氧化硅陶瓷型芯；解决了氧化硅陶瓷通过光固化3D打印方式制备氧化硅陶瓷型芯过程中陶瓷料浆的相对折射率低导致的易发生散射现象的问题，从而避免了成型精度的下降；且容易脱模，同时避免陶瓷型芯进行浇铸时由于孔隙高导致的浇铸件表面不光滑的问题。
Silicon oxide ceramic core and preparation method thereof
The invention discloses a silicon oxide ceramic core and a preparation method thereof.The preparation method of the silicon oxide ceramic core comprises the following steps that ceramic slurry is prepared, the ceramic slurry comprises ceramic particles, and the ceramic particles comprise silicon oxide and silicon nitride; based on the ceramic slurry, preparing a ceramic matrix blank through photocuring 3D printing; pre-sintering the ceramic matrix green body to obtain a ceramic matrix; preparing an auxiliary agent solution, dipping the auxiliary agent solution into the ceramic matrix, and then carrying out a heating reaction; then sintering to obtain a silicon oxide ceramic core; the problem that in the process of preparing the silicon oxide ceramic core from silicon oxide ceramic in a photocuring 3D printing mode, the relative refractive index of ceramic slurry is low, and consequently the scattering phenomenon is likely to happen is solved, and therefore reduction of the forming precision is avoided; and meanwhile, the problem that the surface of a casting piece is not smooth due to high pores when the ceramic core is cast is solved.
本发明公开了一种氧化硅陶瓷型芯及其制备方法，所述氧化硅陶瓷型芯制备方法，包括以下步骤：制备陶瓷料浆，所述陶瓷料浆包括陶瓷颗粒，所述陶瓷颗粒包括氧化硅、氮化硅；基于所述陶瓷料浆，通过光固化3D打印制备陶瓷基体坯体；将陶瓷基体坯体进行预烧结得到陶瓷基体；制备助剂溶液，将助剂溶液浸渍到陶瓷基体内，然后进行加热反应；然后进行烧结，得到氧化硅陶瓷型芯；解决了氧化硅陶瓷通过光固化3D打印方式制备氧化硅陶瓷型芯过程中陶瓷料浆的相对折射率低导致的易发生散射现象的问题，从而避免了成型精度的下降；且容易脱模，同时避免陶瓷型芯进行浇铸时由于孔隙高导致的浇铸件表面不光滑的问题。
Silicon oxide ceramic core and preparation method thereof
一种氧化硅陶瓷型芯及其制备方法
LI LING (author) / HAN ZHUOQUN (author) / WANG YINGYING (author) / BI LUNAN (author) / ZHAO JIE (author) / LIU SHIHAO (author) / ZHANG XIA (author) / CHU WEI (author)
2024-01-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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