Fabrication of SiOC ceramic with cellular structure via UV-Assisted direct ink writing

被引：36

作者：

Wei, Lai ^{[1
,2
]}

Li, Jing ^{[2
]}

Zhang, Shuai ^{[2
]}

Li, Bo ^{[2
]}

Liu, Yu ^{[3
,4
]}

Wang, Feng ^{[1
]}

Dong, Shixiang ^{[2
,5
]}

机构：

[1] Chongqing JiaoTong Univ, Sch Mat Sci & Engn, Chongqing 400074, Peoples R China

[2] China Acad Engn Phys, Res Ctr Laser Fus, Mianyang 621000, Sichuan, Peoples R China

[3] Jiangnan Univ, Sch Mech Engn, Wuxi 214122, Jiangsu, Peoples R China

[4] Jiangnan Univ, Jiangsu Key Lab Adv Food Mfg Equipment & Technol, Wuxi 214122, Jiangsu, Peoples R China

[5] Southeast Univ, Sch Biol Sci & Med Engn, State Key Lab Bioelect, Nanjing 210096, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2020年 / 46卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Additive manufacturing; Direct ink writing; UV-Curing; SiOC;

D O I：

10.1016/j.ceramint.2019.10.083

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, polysiloxane resin was modified at the molecular scale to make it amenable to ultraviolet-curing and suitable for direct ink writing. The characterization results regarding the rheological properties and infrared spectra demonstrated that the conversion of C=C is proportional to the viscosity and modulus of ink. As a result, three-dimensional cellular structures with a certain span and tailored porosity were obtained. The printed structures were then subjected to pyrolysis at temperatures higher than 1000 degrees C to form uniform, crack-free, dense SiOC cellular ceramic structures, with ceramic yield of up to 70% and linear shrinkage as low as 25%. This technique enables the inexpensive and fast fabrication of SiOC ceramic products with relatively complex shapes.

引用

页码：3637 / 3643

页数：7

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