摘要
以碳化硅为主要原料,通过调整泥浆的粘度,采用有机前驱体浸渍成型法,在1400℃下烧制成了多孔碳化硅泡沫陶瓷。研究表明:样品断面孔呈三维立体网状,孔壁厚薄适宜,气孔较大且分布均匀,气孔率高,孔径在30μm以下,主晶相为SiC和SiO2,前驱体经过处理后,样品的抗折强度平均提高了0.615MPa,挂浆量也有所提高。
Using SiC as raw material, porous SiC foamed ceramics were prepared by adjusting slurry viscosity at 1400℃. Forming technology was dipping organic precursors. The result showed that the section of the sample presents a three- dimensional net structure, the wall thickness of the hole is proper, the distribution of the holes is homogeneous, the porosity is high, apertures are smaller than 30μm, and the main crystal appearance is SiC. The strength of samples has been improved by dealing organic precursors. The slurry on the ribs has been increased.
出处
《陶瓷学报》
CAS
2008年第4期312-314,共3页
Journal of Ceramics
基金
国家自然科学基金(编号:50774055)
