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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2007.10
- 수록면
- 120 - 124 (5page)
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초록· 키워드
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Pb(Zr<SUB>0.52</SUB>Ti<SUB>0.48</SUB>)O₃ nanofibers with diameters ranging from 150nm to about 800nm were fabricated by electrospinning using PZT sol-gel as precursor. The spun nanofibers were sintered at three different temperatures (550℃, 650℃ and 700 ℃). The effects of solvent (PVAc) concentration, feeding rate and acidification (organic acid) of PZT sol-gel precursor on fiber diameter and microstructure of fibers were investigated by SEM and XRD. SEM revealed that concentrations of PVAc had influence on fiber diameter. The average diameter of the nanofibers increased with increasing PVAc concentration. However, the feeding rate had little influence on fiber diameter. The PZT fiber surface from PZT/ PVAc precursor containing acetic acid was smooth and no crack was on the surface which demonstrated the necessity of acidifying PZT precursor to get dense and crack free nanofibers while surface of fibers without acetic acid was rough and some cracks appeared on the surface. The analysis by XRD indicated that the precursor started to be transformed into perovskite phase at 550 ℃ and completed in range of 650 ℃ - 700 ℃.
목차
Abstract
INTRODUCTION
EXPERIMENTAL
RESULTS AND DISCUSSION
X-RAY DIFFRACTION ANALYSIS OF THE PZT FIBER
CONCLUSION
ACKNOWLEDGEMENT
REFERENCES
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