Investigation of Production of Fine-grained SiAlON Ceramics from Nanopowders
Different sialons’ compositions were used to find the effect of material starting components on sintering and properties of sialon materials. The nanopowders (Si<sub>3</sub>N<sub>4</sub>, AlN, Al<sub>2</sub>O<sub>3</sub>, Y<sub>2</sub>O<...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Kaunas University of Technology
2012-09-01
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| Series: | Medžiagotyra |
| Subjects: | |
| Online Access: | http://matsc.ktu.lt/index.php/MatSc/article/view/2439 |
| Summary: | Different sialons’ compositions were used to find the effect of material starting components on sintering and properties of sialon materials. The nanopowders (Si<sub>3</sub>N<sub>4</sub>, AlN, Al<sub>2</sub>O<sub>3</sub>, Y<sub>2</sub>O<sub>3</sub> and Si<sub>3</sub>N<sub>4</sub>-27 wt.% AlN nanocomposite) were produced by the plasmachemical synthesis. The composite materials were sintered by the method of pressure-less sintering. Sintering temperature decreased significantly, if Si<sub>3</sub>N<sub>4</sub>-AlN nanocomposite was used as one of the components. The increased amount of a- sialon phase and higher hardness are characteristic for materials obtained from separate Si<sub>3</sub>N<sub>4</sub>, AlN, Al<sub>2</sub>O<sub>3</sub>, Y<sub>2</sub>O<sub>3</sub> nanocomponents.<p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.18.3.2439">http://dx.doi.org/10.5755/j01.ms.18.3.2439</a></p> |
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| ISSN: | 1392-1320 2029-7289 |