| 학회 |
한국재료학회 |
| 학술대회 |
2008년 가을 (11/07 ~ 11/07, 차세대융합기술연구원) |
| 권호 |
14권 2호 |
| 발표분야 |
나노생체재료 |
| 제목 |
Formation of TiO2 nanofibers in the Unidirectional Multi-layered Al2O3-ZrO2/TiO2 Composite Membrane |
| 초록 |
TiO2 nano fiber was fabricated in the unidirectional multi-layered Al2O3 –ZrO2 porous body. Multi-layered porous Al2O3-ZrO2 body as a substrate was fabricated by a multi-pass extrusion method. The substrate showed the had suitable pore size and surface roughness for making composite membrane. Pore size of unidirectional substrate was about 190µm in diameter. TiO2 nano fiber was directly coated using TiO2 slurry which contained titanium tetra isoproxide(TTIP) as TiO2 precursor. After dipping of TiO2 solution, the TiO2 coated unidirectional porous substrate was aged in NaOH solution to grow the TiO¬2 nanofibers. During the aging process, many TiO2 whiskers came out through chemical reaction. Depend on the aging time, the morphology of TiO2 whiskers was dramatically changed. The investigations depending on the aging time of multi-layered unidirectional Al2O3-ZrO2/TiO2 porous body were carried out using XRD, SEM and EDS techniques. |
| 저자 |
Hyun-Jin Hong, Swapan Kumar Sarkar, Byong-Taek Lee
|
| 소속 |
Soonchunhyang Univ. |
| 키워드 |
Extrusion; composites; TiO¬2 whisker; membrane
|
| E-Mail |
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