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Aluminum nitride ceramic part and forming method thereof
The invention discloses an aluminum nitride ceramic part and a forming method thereof.The forming method comprises the steps that aluminum nitride ceramic powder and sintering aid powder are mixed to obtain solid mixed powder, then ball milling treatment is carried out, a first metering dispersing agent is added while ball milling is carried out, and the aluminum nitride ceramic part is obtained under the dark condition; adding the ball-milled solid mixed powder into the photocuring premixed liquid, then adding a second metering dispersing agent, and continuously ball-milling to prepare slurry; the aluminum nitride ceramic powder is in continuous grading of three sizes; and then printing, curing, degreasing and sintering to obtain the aluminum nitride ceramic part. According to the method, the graded aluminum nitride ceramic powder with three particle sizes and the sintering aid powder are mixed and then sintered, so that the sintering compactness of the aluminum nitride ceramic is ensured, and meanwhile, the curing depth is effectively improved. In addition, in the preparation of the photocuring premixed liquid, an auxiliary agent with a high refractive index is added, so that the refractive index difference between the auxiliary agent and the powder is reduced, and the curing penetration depth of the slurry is further improved.
本发明公开一种氮化铝陶瓷零件及其成型方法，该成型方法包括将氮化铝陶瓷粉末和烧结助剂粉末混合，得到固体混合粉末，然后进行球磨处理，在球磨的同时加入第一计量分散剂，在避光条件下，将球磨后的固体混合粉末加入光固化预混液中，再加入第二计量分散剂，继续球磨，制得浆料；所述氮化铝陶瓷粉末为三种尺寸的连续级配；然后进行打印、固化、脱脂、烧结，制得所述氮化铝陶瓷零件。该方法利用三种粒径的级配的氮化铝陶瓷粉末与烧结助剂粉末混合后进行烧结处理，在保证氮化铝陶瓷烧结致密性的同时，有效提高了固化深度。另外在制备光固化预混液中，加入高折射率的助剂，降低助剂与粉体的折射率差，进一步提高了浆料的固化穿深。
Aluminum nitride ceramic part and forming method thereof
The invention discloses an aluminum nitride ceramic part and a forming method thereof.The forming method comprises the steps that aluminum nitride ceramic powder and sintering aid powder are mixed to obtain solid mixed powder, then ball milling treatment is carried out, a first metering dispersing agent is added while ball milling is carried out, and the aluminum nitride ceramic part is obtained under the dark condition; adding the ball-milled solid mixed powder into the photocuring premixed liquid, then adding a second metering dispersing agent, and continuously ball-milling to prepare slurry; the aluminum nitride ceramic powder is in continuous grading of three sizes; and then printing, curing, degreasing and sintering to obtain the aluminum nitride ceramic part. According to the method, the graded aluminum nitride ceramic powder with three particle sizes and the sintering aid powder are mixed and then sintered, so that the sintering compactness of the aluminum nitride ceramic is ensured, and meanwhile, the curing depth is effectively improved. In addition, in the preparation of the photocuring premixed liquid, an auxiliary agent with a high refractive index is added, so that the refractive index difference between the auxiliary agent and the powder is reduced, and the curing penetration depth of the slurry is further improved.
本发明公开一种氮化铝陶瓷零件及其成型方法，该成型方法包括将氮化铝陶瓷粉末和烧结助剂粉末混合，得到固体混合粉末，然后进行球磨处理，在球磨的同时加入第一计量分散剂，在避光条件下，将球磨后的固体混合粉末加入光固化预混液中，再加入第二计量分散剂，继续球磨，制得浆料；所述氮化铝陶瓷粉末为三种尺寸的连续级配；然后进行打印、固化、脱脂、烧结，制得所述氮化铝陶瓷零件。该方法利用三种粒径的级配的氮化铝陶瓷粉末与烧结助剂粉末混合后进行烧结处理，在保证氮化铝陶瓷烧结致密性的同时，有效提高了固化深度。另外在制备光固化预混液中，加入高折射率的助剂，降低助剂与粉体的折射率差，进一步提高了浆料的固化穿深。
Aluminum nitride ceramic part and forming method thereof
一种氮化铝陶瓷零件及其成型方法
LU BINGHENG (author) / XU HAIMAN (author) / LIU RONGZHEN (author)
2024-03-29
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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