| 학회 |
한국재료학회 |
| 학술대회 |
2010년 봄 (05/13 ~ 05/14, 삼척 팰리스 호텔) |
| 권호 |
16권 1호 |
| 발표분야 |
E. Frontiers of Materials Research(선도 재료연구) |
| 제목 |
Optical, Mechanical and Tribological Properties of Y2O3, Er2O3 and Nd2O3 Doped Polycrystalline Silicon Nitride Ceramics |
| 초록 |
Y2O3, Er2O3 and Nd2O3 doped polycrystalline silicon nitride were prepared by hot pressed sintering at 1850°C and their optical transmittance were investigated in visible and in infrared region. Mechanical and tribological properties were also investigated. Grain growth in silicon nitride was reduced with addition of Y2O3 and Nd2O3. 1 wt.% of each rare earth metal were sintered with 3 wt.% MgO, 9wt.% AlN and 87 wt.% of α-Si3N4. Adding these rare earth metal oxides shows good mechanical properties as high strength and toughness and also shows low friction coefficient. |
| 저자 |
Bhupendra Joshi, 이수완
|
| 소속 |
선문대 |
| 키워드 |
Hot press; optical; mechanical; tribological properties
|
| E-Mail |
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