材料科学与工程学报2020，Vol.38Issue(2)：220-225,294,7.DOI:10.14136/j.cnki.issn1673-2812.2020.02.008
Al2O3陶瓷膏体3D打印挤出成型流变性
Investigation on Flowability of Al2O3 Ceramic Slurry for Extrusion-based 3D Printing
摘要
Abstract
With respect to ceramic 3D printing using ceramic slurry,the rheological behavior of the ceramic slurry is crucial for ensuring the qualities of the 3D rinted ceramic product,as the rheological performance exhibits great impacts on the density and forming precision of green body.Taking 3D printing of Al2O3 Ceramic Slurry as the main object,factors including solid content of A12O3 ceramic slurry, dispersing agent, pH value and milling time were comprehensively investigated.Results indicate that the viscosity of the slurry increased gradually with the increment of the solid content;Increases of content of dispersing agent or milling time made the viscosity decreased at first and then increased dramatically.On the contrary,pH value exerted ifferent effects on the viscosity,and it increased initially and decreased gradually with the increase of pH value.On the basis of the experiment,the optimal arameters of the rheological behavior of the ceramic slurry are that the solid content,the content of dispersing agent,pH value and milling time are 51vol.%,0.3vol.%,3 and 36h respectively,which are beneficial to the forming precision and microstructure of the 3D printed specimens.关键词
流动性/陶瓷膏体/3D打印/粘度/固相含量Key words
Flowability/Ceramic slurry/3D printing/Viscosity/Solids content分类
化学化工引用本文复制引用
陈劲松,晁龙,邱明波,郭建,黄大志,丁云飞..Al2O3陶瓷膏体3D打印挤出成型流变性[J].材料科学与工程学报,2020,38(2):220-225,294,7.基金项目
The work described in this paper was supported National Natural Science Foundation of China(51675272 ),Jiangsu Science and technology plan project (BE2019002-2),Six talent peaks project in Jiangsu Province of China (JY-032),521 high level talents project in Lianyungang of China,Jiangsu Postgraduate Research Innovation Project(SY201705X),Jiangsu Province 3D Printing Equipment and Application Technology Key Construction Laboratory （51675272 ）
