Investigation of Production of Fine-grained SiAlON Ceramics from Nanopowders

Medžiagotyra

Nataļja ŽILINSKA¹  Jānis KRASTIŅŠ¹  Ilmārs ZĀLĪTE¹ 

[1] Riga Technical University;

关键词: sialon;    nanocomposite;    pressure-less sintering;    mechanical properties;   

DOI  :  10.5755/j01.ms.18.3.2439

来源: DOAJ

【 摘 要 】

Different sialons’ compositions were used to find the effect of material starting components on sintering and properties of sialon materials. The nanopowders (Si₃N₄, AlN, Al₂O₃, Y₂O₃ and Si₃N₄-27 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 Si₃N₄-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 Si₃N₄, AlN, Al₂O₃, Y₂O₃ nanocomponents.

DOI: http://dx.doi.org/10.5755/j01.ms.18.3.2439

【 授权许可】

Unknown