| 규소/질화규소 비가 자전연소합성공정을 이용한 다공질 질화규소 세라믹스의 미세구조와 특성에 미치는 영향 |
| 김동백, 박동수1, 한병동1, 정연길 |
창원대학교 재료공학과
1한국기계연구원 미래기술연구부 |
| Effect of Si/Si3N4 Ratio on the Microstructure and Properties of Porous Silicon Nitrilde Prepared by SHS Methode |
| Dong-Baek Kim, Dong-Soo Park1, Byung-Dong Hahn1, Yeon-Gil Jung |
Department of Materials Science and Engineering, Changwon National University
1Department of Future Technology, Korea Institute of Machinery and Materials |
|
|
|
|
|
| ABSTRACT |
|
Porous silicon nitride ceramics were prepared by SHS (Self-Propagating High Temperature Synthesis) from silicon powder, silicon nitride powder and pore-forming precursor. The microstructure, porosity and the flexural strength of the porous silicon nitride ceramics were varied according to the Si/Si3N4 ratio, size and amount of the pore-forming precursors. Some sample exhibited as high flexural strength as $162{pm}24;MPa$. The high strength is considered to result from the fine pore size and the strong bonding amoung the silicon nitride particles. |
| Key words:
SHS, Porous ceramics, $Si_3N_4$, Si |
|
PDF Links
Full text via DOI
Download Citation 
