Effect of surface treatment on the dispersion of nano zirconia particles in non-aqueous suspensions for stereolithography

Sun, Jinxing1,2,3; Binner, Jon3; Bai, Jiaming1,2

2019-04

10.1016/j.jeurceramsoc.2018.10.024

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

0955-2219

1873-619X

Stereolithography (SLA) requires the creation of stable and well dispersed ceramic suspensions with high solid loading in order to achieve dense ceramic parts. Five different dispersants used were stearic acid (SA), oleic acid (OA), Disperbyk (BYK), coupling agent KH560 and variquat CC 42 NS (CC). The results indicated that BYK, KH560 and OA are all capable of creating low viscosity, well dispersed suspensions with nanozirconia particles; of these 3 wt% BYK was the best option. 3 wt% BYK treated suspensions displayed shear thinning behaviour and had a viscosity of 1680 mPa s at a shear rate of 18.6 s(-1). A zirconia part was fabricated using the optimized suspension and its production followed the Beer-Lambert law. After sintering, a significant shrinkage was measured (21.9% in X-Y plane and 28.9% in Z directions), the SEM image showed the sintered part offered a high level of densification.

Nanozirconia Ceramic suspensions Dispersants Rheological behaviour

SCI ; EI

英语

通讯

National Natural Science Foundation of China[51805239]

Materials Science

Materials Science, Ceramics

WOS:000457819600118

ELSEVIER SCI LTD

20184506038520

Ceramic materials ; Coupling agents ; Shear thinning ; Sintering ; Stereolithography ; Surface treatment ; Zirconia

Heat Treatment Processes:537.1 ; Fluid Flow, General:631.1 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Ceramics:812.1

MATERIALS SCIENCE

Web of Science

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

Sun, Jinxing,Binner, Jon,Bai, Jiaming. Effect of surface treatment on the dispersion of nano zirconia particles in non-aqueous suspensions for stereolithography[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2019,39(4):1660-1667.

Sun, Jinxing,Binner, Jon,&Bai, Jiaming.(2019).Effect of surface treatment on the dispersion of nano zirconia particles in non-aqueous suspensions for stereolithography.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,39(4),1660-1667.

Sun, Jinxing,et al."Effect of surface treatment on the dispersion of nano zirconia particles in non-aqueous suspensions for stereolithography".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 39.4(2019):1660-1667.