3D printing of zirconia via digital light processing: optimization of slurry and debinding process

Sun, Jinxing1,2; Binner, Jon2; Bai, Jiaming1

2020-12

10.1016/j.jeurceramsoc.2020.05.079

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY   影响因子和分区

0955-2219

1873-619X

Digital light processing (DLP) is regarded as one of the most promising 3D printing technologies to process ceramics, however the precise composition of the slurry and the optimisation of the debinding process are still challenges that need to be overcome. In this work, both the dispersion and rheological behaviour of the zirconia slurry were studied using rheometery and UV-vis spectroscopy, and optimising the dispersant concentration was found to have significant benefits. Zirconia green parts were fabricated with zirconia slurry based on DLP technology, which exhibited good dimensional resolution under an exposure energy dose of 15 mJ cm(-2). In addition, the debinding process was studied using TGA and an optimised approach was designed and developed. Dye penetration and SEM results showed that debinding under argon, rather than flowing air, could lead to crack-free parts at heating rates of either 0.2 or 0.5 degrees C min(-1), though the former yielded slightly better results overall.

Digital light processing ALUMINA zirconia FABRICATION dispersant CERAMICS thermal debinding SUSPENSIONS DISPERSION DENSITY PARTS

SCI ; EI

英语

第一 ; 通讯

Shenzhen Key Laboratory for Additive Manufacturing of High-performance Materials[ZDSYS201703031748354] ; Guangdong Province International Collaboration Programme[2019A050510003]

Materials Science

Materials Science, Ceramics

WOS:000564730300004

ELSEVIER SCI LTD

20202608875098

Ultraviolet visible spectroscopy ; 3D printers

Printing Equipment:745.1.1 ; Inorganic Compounds:804.2

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen Key Lab Addit Mfg High Performance Mat, Shenzhen 518055, Peoples R China;
2.Univ Birmingham, Sch Met & Mat, Birmingham B15 2TT, W Midlands, England

Sun, Jinxing,Binner, Jon,Bai, Jiaming. 3D printing of zirconia via digital light processing: optimization of slurry and debinding process[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2020,40(15):5837-5844.

Sun, Jinxing,Binner, Jon,&Bai, Jiaming.(2020).3D printing of zirconia via digital light processing: optimization of slurry and debinding process.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,40(15),5837-5844.

Sun, Jinxing,et al."3D printing of zirconia via digital light processing: optimization of slurry and debinding process".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 40.15(2020):5837-5844.