Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5440633 | Journal of the European Ceramic Society | 2017 | 4 Pages |
Abstract
Porous SiC/SiCN composite ceramics with heterogeneous pore structure and rod-like SiCN grains were fabricated by foaming and reaction sintering. The mixture slurry containing SiC and silicon as raw materials, cornstarch as binder, Y2O3 as sintering additive and an electrosteric dispersant was stirred with foams derived from pre-foaming using foaming agent. The casted green body was sintered at 1650 °C under nitrogen atmosphere. The results demonstrated that the porous SiC/SiCN ceramics exhibited hierarchical vias ranging from 1 μm to 1 mm and the rod-like crystalline SiCN grains generated in the SiC matrix.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jun Li, Wenjie Yuan, Chengji Deng, Hongxi Zhu,