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Preparation method of oxide ceramic powder for laser 3D printing
The invention relates to the field of 3D printing materials, in particular to a preparation method of an oxide ceramic powder for laser 3D printing, which comprises the following steps: carrying out ball milling on ceramic powder and a polyvinyl alcohol solution in a ball milling medium to obtain a mixed powder, wherein the ceramic powder comprises Al2O3 powder and Gd2O3 powder, the particle sizeof the Al2O3 powder and the particle size of the Gd2O3 powder are independently 2-5 [mu] m, and the ball milling medium is absolute ethyl alcohol; dispersing the mixed powder in water to obtain a mixed slurry; carrying out centrifugal spray drying on the mixed slurry to obtain a spherical ceramic powder; and sintering the spherical ceramic powder at a constant temperature to obtain oxide ceramic powder. According to the method, irregular oxide powder is modified into uniform oxide ceramic powder with the particle size of 10-50 microns, and the particle size uniformity and fluidity of the powder are improved.
本发明涉及3D打印材料领域，尤其涉及一种激光3D打印用氧化物陶瓷粉末的制备方法，本发明将陶瓷粉末和聚乙烯醇溶液在球磨介质中球磨，得到混合粉末；所述陶瓷粉末包括AlO粉末和GdO粉末，所述AlO粉末和GdO粉末的粒径独立地为2～5μm，所述球磨介质为无水乙醇；将所述混合粉末分散在水中，得到混合浆料；将所述混合浆料进行离心喷雾干燥，得到球形陶瓷粉末；将所述球形陶瓷粉末进行恒温烧结，得到氧化物陶瓷粉末。本发明通过上述方法将不规则的氧化物粉末改性为粒径为10～50μm的均匀氧化物陶瓷粉末，提高粉末的粒度均匀性和流动性。
Preparation method of oxide ceramic powder for laser 3D printing
The invention relates to the field of 3D printing materials, in particular to a preparation method of an oxide ceramic powder for laser 3D printing, which comprises the following steps: carrying out ball milling on ceramic powder and a polyvinyl alcohol solution in a ball milling medium to obtain a mixed powder, wherein the ceramic powder comprises Al2O3 powder and Gd2O3 powder, the particle sizeof the Al2O3 powder and the particle size of the Gd2O3 powder are independently 2-5 [mu] m, and the ball milling medium is absolute ethyl alcohol; dispersing the mixed powder in water to obtain a mixed slurry; carrying out centrifugal spray drying on the mixed slurry to obtain a spherical ceramic powder; and sintering the spherical ceramic powder at a constant temperature to obtain oxide ceramic powder. According to the method, irregular oxide powder is modified into uniform oxide ceramic powder with the particle size of 10-50 microns, and the particle size uniformity and fluidity of the powder are improved.
本发明涉及3D打印材料领域，尤其涉及一种激光3D打印用氧化物陶瓷粉末的制备方法，本发明将陶瓷粉末和聚乙烯醇溶液在球磨介质中球磨，得到混合粉末；所述陶瓷粉末包括AlO粉末和GdO粉末，所述AlO粉末和GdO粉末的粒径独立地为2～5μm，所述球磨介质为无水乙醇；将所述混合粉末分散在水中，得到混合浆料；将所述混合浆料进行离心喷雾干燥，得到球形陶瓷粉末；将所述球形陶瓷粉末进行恒温烧结，得到氧化物陶瓷粉末。本发明通过上述方法将不规则的氧化物粉末改性为粒径为10～50μm的均匀氧化物陶瓷粉末，提高粉末的粒度均匀性和流动性。
Preparation method of oxide ceramic powder for laser 3D printing
一种激光3D打印用氧化物陶瓷粉末的制备方法
SU HAIJUN (author) / LIU HAIFANG (author) / SHEN ZHONGLIN (author) / ZHANG JUN (author) / LIU LIN (author) / GUO MIN (author) / FU HENGZHI (author)
2020-04-10
Patent
Electronic Resource
Chinese
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
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