Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Zero-sintering-shrinkage aluminum-based ceramic core material for photocuring additive manufacturing
The invention discloses a photo-curing additive manufacturing zero-sintering-shrinkage aluminum-based ceramic core material, which is characterized in that slurry is composed of 35-45vol% of photosensitive resin, 55-60vol% of ceramic powder and 1-5% of dispersing agent based on the mass of the ceramic powder, and the dispersing agent is added according to the volume ratio of the photosensitive resin to the ceramic powder, the dispersing agent is added according to the volume ratio of the photosensitive resin to the ceramic powder, and the ceramic powder is added according to the volume ratio of the dispersing agent to the ceramic powder. The photosensitive resin contains 0.4-1% of a photoinitiator, the ceramic powder comprises the following components: aluminum oxide, kyanite and silicon oxide, and the invention relates to the technical field of ceramic material additive manufacturing. According to the zero-sintering-shrinkage aluminum-based ceramic core material for photocuring additive manufacturing, kyanite is added into photocuring ceramic slurry, and expansion generated by decomposition of kyanite at a high temperature compensates shrinkage of a ceramic core in the sintering stage; and zero sintering shrinkage of the ceramic core at the sintering temperature of 1600 DEG C is realized under the combined action of decomposition expansion of kyanite and sintering shrinkage of aluminum oxide. According to the invention, the complex ceramic core with zero sintering shrinkage rate and excellent comprehensive performance can be prepared.
本发明公开了一种光固化增材制造零烧结收缩铝基陶瓷型芯材料，其浆料是由光敏树脂、分散剂和陶瓷粉体构成，其中所述光敏树脂按照体积比占35‑45vol％，陶瓷粉体占体积比55‑60vol％以及分散剂按照陶瓷粉体质量的1‑5％进行添加，且光敏树脂中含有0.4‑1％的光引发剂，陶瓷粉体的组分包括：氧化铝、蓝晶石和氧化硅，本发明涉及陶瓷材料增材制造技术领域。该光固化增材制造零烧结收缩铝基陶瓷型芯材料，通过在光固化陶瓷浆料中加入蓝晶石，蓝晶石在高温下分解产生的膨胀补偿了陶瓷型芯在烧结阶段的收缩，在蓝晶石分解膨胀和氧化铝烧结收缩的共同作用下实现了1600度烧结温度下陶瓷型芯的零烧结收缩，本发明能够制备出烧结收缩率为零并且综合性能优良的复杂陶瓷型芯。
Zero-sintering-shrinkage aluminum-based ceramic core material for photocuring additive manufacturing
The invention discloses a photo-curing additive manufacturing zero-sintering-shrinkage aluminum-based ceramic core material, which is characterized in that slurry is composed of 35-45vol% of photosensitive resin, 55-60vol% of ceramic powder and 1-5% of dispersing agent based on the mass of the ceramic powder, and the dispersing agent is added according to the volume ratio of the photosensitive resin to the ceramic powder, the dispersing agent is added according to the volume ratio of the photosensitive resin to the ceramic powder, and the ceramic powder is added according to the volume ratio of the dispersing agent to the ceramic powder. The photosensitive resin contains 0.4-1% of a photoinitiator, the ceramic powder comprises the following components: aluminum oxide, kyanite and silicon oxide, and the invention relates to the technical field of ceramic material additive manufacturing. According to the zero-sintering-shrinkage aluminum-based ceramic core material for photocuring additive manufacturing, kyanite is added into photocuring ceramic slurry, and expansion generated by decomposition of kyanite at a high temperature compensates shrinkage of a ceramic core in the sintering stage; and zero sintering shrinkage of the ceramic core at the sintering temperature of 1600 DEG C is realized under the combined action of decomposition expansion of kyanite and sintering shrinkage of aluminum oxide. According to the invention, the complex ceramic core with zero sintering shrinkage rate and excellent comprehensive performance can be prepared.
本发明公开了一种光固化增材制造零烧结收缩铝基陶瓷型芯材料，其浆料是由光敏树脂、分散剂和陶瓷粉体构成，其中所述光敏树脂按照体积比占35‑45vol％，陶瓷粉体占体积比55‑60vol％以及分散剂按照陶瓷粉体质量的1‑5％进行添加，且光敏树脂中含有0.4‑1％的光引发剂，陶瓷粉体的组分包括：氧化铝、蓝晶石和氧化硅，本发明涉及陶瓷材料增材制造技术领域。该光固化增材制造零烧结收缩铝基陶瓷型芯材料，通过在光固化陶瓷浆料中加入蓝晶石，蓝晶石在高温下分解产生的膨胀补偿了陶瓷型芯在烧结阶段的收缩，在蓝晶石分解膨胀和氧化铝烧结收缩的共同作用下实现了1600度烧结温度下陶瓷型芯的零烧结收缩，本发明能够制备出烧结收缩率为零并且综合性能优良的复杂陶瓷型芯。
Zero-sintering-shrinkage aluminum-based ceramic core material for photocuring additive manufacturing
一种光固化增材制造零烧结收缩铝基陶瓷型芯材料
HU KEHUI (Autor:in) / LYU ZHIGANG (Autor:in) / ZHANG SIYU (Autor:in) / ZHANG JINGTONG (Autor:in) / WANG QING (Autor:in)
29.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
Photocuring 3D printing low-sintering-shrinkage ceramic core and preparation method thereof
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
Photocuring 3D printing manufacturing method of aluminum oxide-based ceramic core
| Europäisches Patentamt | 2021