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Cost-effective fabrication of porous α-SiAlON bonded β-SiAlON ceramics
- Source :
-
Materials Letters . Aug2005, Vol. 59 Issue 19/20, p2601-2604. 4p. - Publication Year :
- 2005
-
Abstract
- 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. [Copyright &y& Elsevier]
- Subjects :
- *MICROMECHANICS
*IRON metallurgy
*POWDER metallurgy
*SCANNING electron microscopy
Subjects
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 59
- Issue :
- 19/20
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 18037840
- Full Text :
- https://doi.org/10.1016/j.matlet.2005.03.048