硅酸盐通报2024，Vol.43Issue(10)：3772-3786,3797,16.
3D打印陶瓷坯体热脱脂机理与工艺研究进展
Research Progress of Mechanism and Process of Thermal Debinding in 3D-Printed Ceramic Green Body
摘要
Abstract
Organic binders are always necessary for the fabrication of advanced ceramics by 3D-printing,which are mainly discharged from the ceramic green bodies through a thermal debinding process.Thermal debinding process of organic binders thus has a significant impact on the quality of 3D-printed green bodies and is crucial for fabricating high-quality advanced ceramics to implement applications.Theory and practice in the thermal debinding process of the representative 3D-printed green bodies were reviewed.Based on the composition and function of organic binders,the heat removal methods of different molecular weight organic binders were compared.The interaction between organic binders and ceramic particle surface and the effect of degreasing atmosphere on thermal degradation of organic binders were discussed.Then the thermal debinding process was divided into three stages and the development of the green body structure was described.Three mass transfer channels were analyzed:liquid was transferred by the capillary force,vapor diffused in the liquid phase,and vapor diffused or permeated through the pore nets.Origin causes of the defects such as cracks and distortion lying in the thermal debinding process and the previous steps were analyzed and some control measures were put forward.关键词
3D打印成型/热脱脂/粘结剂/热裂解/脱脂机制/缺陷Key words
3D printing/thermal debinding/binder/thermal degradation/debinding mechanism:defect分类
通用工业技术引用本文复制引用
罗煌阳,杨现锋,刘子玉,刘鹏,徐协文,谢志鹏..3D打印陶瓷坯体热脱脂机理与工艺研究进展[J].硅酸盐通报,2024,43(10):3772-3786,3797,16.基金项目
国家自然科学基金面上项目(52172063) （52172063）
