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Microstructure and Phase Composition of Cold Isostatically Pressed and Pressureless Sintered Silicon Nitride
The microstructure and physical properties of new Y(2)O(3) and Al(2)O(3) oxide-doped silicon nitride ceramics fabricated by cold isostatic pressing and free sintering were investigated. The phase composition of produced material was also studied by X-ray diffraction at room and elevated temperature....
| Autores principales: | , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Springer US
2016
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4792832/ https://www.ncbi.nlm.nih.gov/pubmed/26979726 http://dx.doi.org/10.1186/s11671-016-1365-1 |
| Sumario: | The microstructure and physical properties of new Y(2)O(3) and Al(2)O(3) oxide-doped silicon nitride ceramics fabricated by cold isostatic pressing and free sintering were investigated. The phase composition of produced material was also studied by X-ray diffraction at room and elevated temperature. The fabricated ceramics featured a microstructure of Si(5)AlON(7) grains with a fine-grained α-Si(3)N(4) with a small amount of Y(2)SiAlON(5). Described ceramics is attractive for many high-temperature structural applications due to beneficial combination of fine-grained structure with improved mechanical properties and small weight loss. |
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