The effect of GPS parameters on mechanical properties of Y—α-SiAlON ceramics
| Autor: | D.S. Yan, W.Y. Sun, Tseng-Ying Tien, P.L. Wang, Hongqing Li |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Sialon
Materials science Nitrogen pressure Process Chemistry and Technology Metallurgy Gas pressure sintering Surfaces Coatings and Films Electronic Optical and Magnetic Materials Fracture toughness Flexural strength visual_art Phase (matter) Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Grain boundary Ceramic |
| Zdroj: | Ceramics International. 23:449-456 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/s0272-8842(96)00053-3 |
| Popis: | A dense, oxygen-rich Y—α-sialon ceramic, with a small amount of YAG as a grain boundary phase, has been fabricated through GPS (gas pressure sintering). The effect of nitrogen pressure during GPS on densities and mechanical properties of the materials has been studied, which was observed to be relevant to the YAG content. The α-sialon with 2.5 wt% YAG, GPSed under 3 MPa and at 1800 °C, possesses a flexural strength of 500 MPa, hardness (Vickers) of 1816 kg/ mm2 and fracture toughness (K1c) of 3.4 MPa · m12. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect