authors |
Xu, X; Fu, RL; Chen, KX; Ferreira, JMF |
nationality |
International |
journal |
MATERIALS LETTERS |
author keywords |
sialon; ceramics; microstructure; porosity |
keywords |
SILICON-NITRIDE CERAMICS; MICROSTRUCTURE; CRYSTALS; SI3N4 |
abstract |
Porous sialon ceramics have been cost-effectively prepared by pressureless sintering from a mixture of elongated SHS beta-sialon powders with an alpha-sialon precursor composition composed Of alpha-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 beta-SiAlON grains, which were strongly connected by alpha-SiAlON phase, has been obtained. (c) 2005 Elsevier B.V. All rights reserved. |
publisher |
ELSEVIER SCIENCE BV |
issn |
0167-577X |
year published |
2005 |
volume |
59 |
issue |
19-20 |
beginning page |
2601 |
ending page |
2604 |
digital object identifier (doi) |
10.1016/j.matlet.2005.03.048 |
web of science category |
Materials Science, Multidisciplinary; Physics, Applied |
subject category |
Materials Science; Physics |
unique article identifier |
WOS:000230275100050
|