Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1654049 | Materials Letters | 2005 | 4 Pages |
Abstract
Porous sialon ceramics have been cost-effectively prepared by pressureless sintering from a mixture of elongated SHS β-sialon powders with an α-sialon precursor composition composed of α-Si3N4, AlN, Y2O3 and Al2O3. The obtained porous sialon ceramics exhibited low shrinkage and homogeneous pore size distribution. The results of X-ray diffraction and scanning electron microscopy showed that a uniform microstructure with elongated and intermingled β-SiAlON grains, which were strongly connected by α-SiAlON phase, has been obtained.
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Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Xin Xu, Renli Fu, Kexin Chen, José M.F. Ferreira,