Direct ink writing of Si2N2O porous ceramic strengthened by directional β-Si3N4 grains. Issue 10 (July 2020)

• Record Type: Journal Article
• Authors: Jin, Haize; Jia, Dechang; Yang, Zhihua; Zhou, Yu
• Is Part Of: Ceramics international. Volume 46:Issue 10(2020)Part A
• Page Start: 15709
• Page End: 15713
• Publication Date: 2020-07
• Subjects: Direct ink writing -- β-Si3N4 grains -- Si2N2O -- Anisotropy -- Mechanical properties; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2020.03.077
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Porous Si2 N2 O ceramics strengthened by directional β-Si3 N4 are fabricated by direct ink writing technique and seeding method. Slurries prepared with different contents of β-Si3 N4 grains exhibited superior printing behavior. The degree of orientation of β-Si3 N4 grains increased with the increase of grains content. The mechanical properties of the porous Si2 N2 O ceramic are effectively improved by interspersed β-Si3 N4 grains and present anisotropy. This novel strategy provides a reference for fabricating high-performance anisotropic complex structure ceramics.