Abstract Zirconia ceramic green parts were prepared by gelcasting using acetone-soluble plastic molds printed by fused deposition modeling (FDM) method. The demolding process was then completed by acetone immersion and manual removal. The dispersant content, solid content and ball milling parameters were investigated by analyzing the rheological properties of the zirconia slurry. The mechanical properties and microstructure of furnace-sintered samples with different solid content from 48 vol% to 54 vol% were also tested. Sintered sample prepared from the slurry with 50 vol% solid content had the highest relative density (99.57 ± 0.49%), bending strength (947.8 ± 8.8 MPa) and Vickers hardness (1371.2 ± 225.8 HV). The research showed a positive and practical approach to fabricate ceramic parts with complex shape or structure by gelcasting based on additive manufactured soluble mold.

中文翻译：

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基于增材制造的丙酮可溶塑料模具凝胶注模法制备复杂陶瓷零件

摘要 采用熔融沉积成型（FDM）方法打印的丙酮可溶塑料模具，通过凝胶浇注制备氧化锆陶瓷生坯。然后通过丙酮浸泡和手动移除完成脱模过程。通过分析氧化锆浆料的流变性能，研究了分散剂含量、固含量和球磨参数。还测试了不同固含量从 48 vol% 到 54 vol% 的炉烧结样品的力学性能和微观结构。由固含量为 50 vol% 的浆料制备的烧结样品具有最高的相对密度 (99.57 ± 0.49%)、弯曲强度 (947.8 ± 8.8 MPa) 和维氏硬度 (1371.2 ± 225.8 HV)。