| 학회 |
한국재료학회 |
| 학술대회 |
2008년 봄 (05/22 ~ 05/23, 상록리조트) |
| 권호 |
14권 1호 |
| 발표분야 |
구조재료 |
| 제목 |
Fabrication of unidirectional porous Si2N2O-Si3N4 composite using a viscous polymeric slurry of methylcellulose |
| 초록 |
Unidirectional porous Si2N2O-Si3N4 composites were fabricated using a novel process which employed ethanol bubble as a pore forming agent in a viscous slurry of methylcellulose. The slurry contained Si powders, Y2O3, Al2O3, methylcellulose, ethanol and distill water. During the heating of the slurry, bubbles were formed at 70-80°C and produced the unidirectional porous green body. After nitridatiion at 1400°C, Si2N2O whisker formed at the pore surface in the Si3N4 matrix. X-ray diffraction analysis confirmed the formation of Si2N2O whisker. Pore morphology, size, and distribution of the pores were characterized using scanning electron microscope and mercury porosimetry. |
| 저자 |
Shamiul Islam1, Ho-Yeon Song2, Byong-Taek Lee1
|
| 소속 |
1Department of Biomedical Engineering and Materials, 2Department of Microbiology |
| 키워드 |
Porous Ceramics; Si2N2O; Composite; Methylcellulose
|
| E-Mail |
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