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Method for preparing special-shaped YAG transparent ceramic through laser additive manufacturing technology
The invention discloses a method for preparing special-shaped YAG transparent ceramics by a laser additive manufacturing technology. The method comprises the following steps: weighing Y2O3 and Al2O3 powder, adding a sintering aid and a dispersing agent, adjusting the pH value, adjusting the solid content of slurry to 55-60 vol.% by using ultrapure water, carrying out ball milling on the slurry, adding a 10% PVA aqueous solution and deionized water to adjust the solid content of the slurry to 35-45 vol.%, continuing ball milling, adding a defoaming agent, and carrying out dispersion treatment; carrying out spray granulation, screening and calcining on the obtained slurry, and then carrying out vacuum calcining; carrying out ceramic component forming on the obtained spherical powder through laser additive manufacturing to obtain a YAG ceramic component, and carrying out hot isostatic pressing sintering, annealing and polishing to obtain the special-shaped YAG transparent ceramic. The method can be used for preparing transparent ceramic functional parts with complex shapes and structures, and solves the problems that only materials with simple shapes can be prepared by a mainstream molding technology and a complex slurry preparation system is needed by an additive manufacturing technology.
本发明公开了一种激光增材制造技术制备异形YAG透明陶瓷的方法，步骤包括：称量Y2O3和Al2O3粉体，加入烧结助剂和分散剂，调节pH，超纯水调整浆料固含量为55～60vol.％，将浆料球磨后，加入10％PVA水溶液，去离子水调整浆料固含量为35～45vol.％，继续球磨，加入消泡剂，分散处理；将所得浆料进行喷雾造粒，筛分，煅烧，再真空煅烧；将所得球形粉体通过激光增材制造进行陶瓷构件成型，得到YAG陶瓷构件，热等静压烧结，退火抛光，即得异形YAG透明陶瓷。该方法可制备复杂形状和结构的透明陶瓷功能件，解决了主流成型技术只能制备简单形状材料及增材制造技术需复杂的浆料制备体系的难题。
Method for preparing special-shaped YAG transparent ceramic through laser additive manufacturing technology
The invention discloses a method for preparing special-shaped YAG transparent ceramics by a laser additive manufacturing technology. The method comprises the following steps: weighing Y2O3 and Al2O3 powder, adding a sintering aid and a dispersing agent, adjusting the pH value, adjusting the solid content of slurry to 55-60 vol.% by using ultrapure water, carrying out ball milling on the slurry, adding a 10% PVA aqueous solution and deionized water to adjust the solid content of the slurry to 35-45 vol.%, continuing ball milling, adding a defoaming agent, and carrying out dispersion treatment; carrying out spray granulation, screening and calcining on the obtained slurry, and then carrying out vacuum calcining; carrying out ceramic component forming on the obtained spherical powder through laser additive manufacturing to obtain a YAG ceramic component, and carrying out hot isostatic pressing sintering, annealing and polishing to obtain the special-shaped YAG transparent ceramic. The method can be used for preparing transparent ceramic functional parts with complex shapes and structures, and solves the problems that only materials with simple shapes can be prepared by a mainstream molding technology and a complex slurry preparation system is needed by an additive manufacturing technology.
本发明公开了一种激光增材制造技术制备异形YAG透明陶瓷的方法，步骤包括：称量Y2O3和Al2O3粉体，加入烧结助剂和分散剂，调节pH，超纯水调整浆料固含量为55～60vol.％，将浆料球磨后，加入10％PVA水溶液，去离子水调整浆料固含量为35～45vol.％，继续球磨，加入消泡剂，分散处理；将所得浆料进行喷雾造粒，筛分，煅烧，再真空煅烧；将所得球形粉体通过激光增材制造进行陶瓷构件成型，得到YAG陶瓷构件，热等静压烧结，退火抛光，即得异形YAG透明陶瓷。该方法可制备复杂形状和结构的透明陶瓷功能件，解决了主流成型技术只能制备简单形状材料及增材制造技术需复杂的浆料制备体系的难题。
Method for preparing special-shaped YAG transparent ceramic through laser additive manufacturing technology
一种激光增材制造技术制备异形YAG透明陶瓷的方法
2023-09-01
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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