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Mechanical and dielectric properties of direct ink writing Si2N2O composites.
- Source :
-
Journal of the European Ceramic Society . Apr2021, Vol. 41 Issue 4, p2579-2586. 8p. - Publication Year :
- 2021
-
Abstract
- Si 2 N 2 O composites were achieved via direct ink writing technique and pressureless sintering. The design and optimization of inks and the effect of mass ratio of Si 3 N 4 and SiO 2 on the phase composition, microstructure, mechanical properties and dielectric properties of composites were systematically investigated. The inks exhibit superior stability and printability. Increasing SiO 2 content facilitated densification and enhancement of mechanical property. The generation of β-Si 3 N 4 and Si 2 N 2 O and the nucleation of cristobalite were restrained by high content SiO 2. The ceramic composites with the flexural strengths from 74.1MPa to 104.9MPa and low dielectric constant (≤4.68) were fabricated. This strategy provides a systematic reference for synthesis of high-performance porous Si 2 N 2 O composites based on the DIW. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DIELECTRIC properties
*PERMITTIVITY
*INK
*FLEXURAL strength
*CRISTOBALITE
Subjects
Details
- Language :
- English
- ISSN :
- 09552219
- Volume :
- 41
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Journal of the European Ceramic Society
- Publication Type :
- Academic Journal
- Accession number :
- 148234479
- Full Text :
- https://doi.org/10.1016/j.jeurceramsoc.2020.08.063