Effect of sintering temperature on the microstructures and mechanical properties of ZrO2 ceramics fabricated by additive manufacturing

Chen，Yongan1,2; Tan，Jinlin2,3; Sun，Jinxing4; Guo，Hongshan5; Bai，Jiaming4; Zhou，Peng2; Zhang，Dongyang6; Liu，Gang1

2024

10.1016/j.ceramint.2024.01.039

Ceramics International   影响因子和分区

0272-8842

The optimization of the sintering process for ceramic stereolithography-based additive manufacturing is attracting high interest important due to its correlation with the final properties of the fabricated parts. In this work, a photosensitive zirconia suspension with low viscosity and high solid loading (48 vol%) was prepared using surface-modified zirconia ceramic powders, resulting in an improvement in long-term stability. The correlations between the sintering temperature (1400–1520 °C) and mechanical properties were investigated. The results showed that and the as-sintered zirconia parts exhibited a relatively high density of 99.5 ± 0.1 % and three-point flexural strength of 821 ± 65 MPa as well as excellent fracture toughness (4.37 ± 0.22 MPa m) sintering at 1480 °C, which was attributed to the highly homogeneous microstructure without obvious pores or crack. The obtained insights regarding the correlation between sintering temperature, relative density, and flexural strength can provide practical guidance for the future applications of zirconia ceramics.

Flexural strength Fracture toughness Stereolithography ZrO2

SCI ; EI

英语

其他

MATERIALS SCIENCE

2-s2.0-85181824260

Scopus

1.Hubei Key Laboratory of Plasma Chemistry and Advanced Materials,School of Materials Science and Engineering,Wuhan Institute of Technology,Wuhan,430205,China
2.Institute of Intelligent Manufacturing Technology,Shenzhen Polytechnic University,Shenzhen,518055,China
3.Department of Mechanical and Electronic Engineering,College of Mechatronics and Control Engineering,Shenzhen University,Shenzhen,518055,China
4.College of Engineering,Southern University of Science and Technology,Shenzhen,Nanshan District,518055,China
5.Hoffmann Institute of Advanced Materials,Shenzhen Polytechnic University,Shenzhen,7098 Liuxian Blvd, Nanshan District,518055,China
6.Institute of Critical Materials for Integrated Circuits,Shenzhen Polytechnic University,Shenzhen,518055,China

Chen，Yongan,Tan，Jinlin,Sun，Jinxing,et al. Effect of sintering temperature on the microstructures and mechanical properties of ZrO2 ceramics fabricated by additive manufacturing[J]. Ceramics International,2024,50(7):11392-11399.

Chen，Yongan.,Tan，Jinlin.,Sun，Jinxing.,Guo，Hongshan.,Bai，Jiaming.,...&Liu，Gang.(2024).Effect of sintering temperature on the microstructures and mechanical properties of ZrO2 ceramics fabricated by additive manufacturing.Ceramics International,50(7),11392-11399.

Chen，Yongan,et al."Effect of sintering temperature on the microstructures and mechanical properties of ZrO2 ceramics fabricated by additive manufacturing".Ceramics International 50.7(2024):11392-11399.