南博,张海波,贺跃辉.适用于直写式3D打印陶瓷浆料的流变学性能研究[J].精密成形工程,2021,13(2):1-6.
NAN Bo,ZHANG Hai-bo,HE Yue-hui.Investigation on the Rheological Behaviour of Ceramic Pastes Suitable for Direct Ink Writing[J].Journal of Netshape Forming Engineering,2021,13(2):1-6. |
| 适用于直写式3D打印陶瓷浆料的流变学性能研究 |
| Investigation on the Rheological Behaviour of Ceramic Pastes Suitable for Direct Ink Writing |
| 投稿时间：2020-10-30 |
| DOI：10.3969/j.issn.1674-6457.2021.02.001 |
| 中文关键词: 直写式3D打印 先进陶瓷 浆料 流变学 材料成形 |
| 英文关键词: direct ink writing 3D printing advanced ceramics pastes rheology material forming |
| 基金项目:广东省科技计划(2020B1212060014);东莞市引进创新科研团队计划(2020607101007) |
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| 中文摘要: |
| 目的 提出用于直写式3D打印陶瓷浆料的制备方法和应满足的性能。方法 通过对4种不同陶瓷原料粉末的粒径分布进行表征，将4种粉末制备成浆料并测量其流变学性能，分析不同阶段高分子的引入对浆料流变学性能的影响。结果 对于较小孔径(250 μm和150 μm)的打印过程，原料粉末粒径绝对值需小于3 μm且d90和d10的差值需小于2 μm，同时粘弹性的浆料需具有较好的触变性。结论 浆料流变学性能可为直写式3D打印提供指导。浆料的触变性对于大尺寸、高厚度的样品而言尤为重要，需要在今后的工作中得到重视。 |
| 英文摘要: |
| The work aims to raise the way of preparing pastes suitable for direct ink writing and the properties the pastes should have. The particle distribution of 4 types of ceramic powder was analysed. These powders were made into pastes and their rheological behaviours were measured to analyse the effect of adding macromolecules in different stages on rheological properties of the pastes. For printing process through the nozzles small as 250 μm and 150 μm, the absolute particle size of the raw powder should be less than 3 μm and the difference between d90 and d10 should be less than 2 μm. Meanwhile, the pastes should have good thixotropic behaviour. The rheological behaviours of the pastes offer guidance for the process of direct ink writing. The thixotropic behaviour of the pastes is important for the samples with large size and height, which requires attention in the future work. |
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