Preparation of In-Situ Synthesized SiC Particles Reinforced Highly Porous SigN4 Ceramics by Gel-casting
In this paper,highly porous Si3N4 ceramics with high strength,homogeneous microstructure were fabricated by introducing a proper amount of nanometer carbon in the Si3N4 slurry by gel-casting.Scanning electron microscopy,X-ray diffraction,Archimedes water-displacement method and three-point bending tests were employed to analyze the microstructures and mechanical properties of the sintered bodies.It was shown by the XRD analysis that SiC particles were formed in the sintered bodies.The pillar β-Si3N4 morphology,homogeneous microstructure and the SiC particles as a reinforcement phase are the contributing factors for high porosity and good mechanical behavior.
Silicon nitride Silicon carbide Gel-casting Porous ceramics
Hong Zeng Hongjie Wang Juanli Yu Danbo Lin Guanjun Qiao Jiqiang Gao
State key laboratory for mechanical behavior of materials,xian jiaotong university,Xian 710049,Peoples Republic of China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
898-900
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）