@article{YANG2020, 
author = {Liangliang YANG and Xiaojun ZENG and Allah DITTA and Bo FENG and Lizhong SU and Yue ZHANG},
title = {Preliminary 3D printing of large inclined-shaped alumina ceramic parts by direct ink writing},
year = {2020},
journal = {Journal of Advanced Ceramics},
volume = {9},
number = {3},
pages = {312-319},
keywords = {three dimensional (3D) printing, alumina paste, solidification property, thermally-induced, carrageenan},
url = {https://www.sciopen.com/article/10.1007/s40145-020-0369-6},
doi = {10.1007/s40145-020-0369-6},
abstract = {Three dimensional (3D) printing technology by direct ink writing (DIW) is an innovative complex shaping technology, possessing advantages of flexibility in fabrication, high efficiency, low cost, and environmental-friendliness. Herein, 3D printing of complex alumina ceramic parts via DIW using thermally induced solidification with carrageenan swelling was investigated. The rheological properties of the slurry under different thermally-induced modes were systematically studied. The solidification properties of thermally-induced pastes with varying contents of carrageenan were optimized. The experimental results showed that the optimized paste consisting of 0.4 wt% carrageenan could be rapidly solidified at about 55 ℃, which could print inclined-plane more than 60° in vertical without support, resulting in better homogeneity of the green body. A nearly pore-free structure was obtained after sintering at 1600 ℃ for 2 h.}
}