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无机材料学报

无机材料学报 ›› 2020, Vol. 35 ›› Issue (2): 231-235.DOI: 10.15541/jim20190091

所属专题： 结构陶瓷论文精选(二)； 优秀作者论文集锦； 2019~2020年度优秀作者作品欣赏(六)

• 研究快报 • 上一篇    下一篇

粉体性质对树脂基氧化锆光固化浆料流变行为的影响

李兴邦1,2,仲鹤1,张景贤1,3(),段于森1,2,江东亮1   

  1. 1. 中国科学院 上海硅酸盐研究所, 高性能陶瓷和超微结构国家重点实验室, 上海 200050
    2. 中国科学院大学, 北京 100049
    3. 中国科学院 上海硅酸盐研究所, 苏州研究院, 太仓 215499
  • 收稿日期:2019-03-01 修回日期:2019-04-15 出版日期:2020-02-20 网络出版日期:2019-05-22
  • 作者简介:李兴邦(1994-), 男, 硕士研究生. E-mail: 455104949@qq.com

Powder Characteristics on the Rheological Performance of Resin-based Zirconia Suspension for Stereolithography

LI Xing-Bang1,2,ZHONG He1,ZHANG Jing-Xian1,3(),DUAN Yu-Sen1,2,JIANG Dong-Liang1   

  1. 1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. Suzhou Institute of SICCAS (Shanghai Institute of Ceramics, Chinese Academy of Sciences), Taicang 215499, China
  • Received:2019-03-01 Revised:2019-04-15 Published:2020-02-20 Online:2019-05-22
  • Supported by:
    National Key Research and Development Program of China(2017YFB0310400);National Natural Science Foundation of China(51572277);National Natural Science Foundation of China(51702340);Shanghai Sailing Program(17YF1428800);Natural Science Foundation of Shanghai(17ZR1434800)

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摘要：

合适的树脂基陶瓷浆料的制备对陶瓷光固化成型技术而言至关重要。本文研究了氧化锆粉体的性质, 包括比表面积、粒度与粒径分布、颗粒形貌等因素对树脂基浆料流变行为的影响。研究发现: 粉体的比表面积是影响浆料粘度的最主要因素。选择低比表面积、形貌接近球形的粉体更容易制备出低粘度的浆料。利用Krieger-Dougherty模型研究了粉体固含量对浆料流变行为的影响。在1550 ℃烧结得到了相对密度为(97.83±0.33)%的氧化锆陶瓷, 未发现明显的晶粒异常长大, 表明基于流变学表征方法对浆料制备参数进行优化后, 采用光固化技术可以制备出复杂结构、高质量的氧化锆陶瓷。

关键词: 氧化锆, 陶瓷光固化成型, 浆料, 流变性质

Abstract:

As for ceramic stereolithography technique, the preparation of suitable resin-based ceramic slurry is of primary importance. In this study, the effects of powder characteristics such as specific surface area, particle size and distribution, particle morphology on the rheological behavior of zirconia resin-based suspensions were investigated intensively. Results show that the specific surface area of the powder is the most important factor affecting slurry viscosity. Choosing low specific surface area and quasi-spherical shaped powder is more likely to obtain low viscosity slurries. In addition, the influence of solid loading on the flow behavior were also studied using Krieger-Dougherty model. Zirconia samples with the relative density of (97.83±0.33)% were obtained after sintering at 1550 ℃. No obvious abnormal grain growth in the microstructure of the sintered body is observed. Results indicate that after the optimization of the processing parameters with the help of rheology characterization, complex-shaped high-quality zirconia parts can be obtained using the stereolithography technique.

Key words: zirconia, ceramic stereolithography, slurry, rheological properties

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