표제지
목차
요약 9
Abstract 10
1. 서론 11
2. 연구 내용 14
2.1. 외관 상태 14
2.2. 전기적 분석 14
2.2.1. 전기적 임피던스 분광학 (Electrochemical Impedance Spectroscopy, EIS) 14
2.2.2. 전기 전도율 (Electrical Conductivity) 18
2.3. 초분광 분광법 (Hyperspectral spectroscopy) 20
3. 연구 방법 23
3.1. 도장계 23
3.2. 촉진 내후성 시험 25
3.3. 전기 전도율 분석 26
3.4. Electrochemical Impedance Spectroscopy, EIS 분석 27
3.5. 초분광 분석 (Hyperspecrtal Analysis) 28
4. 연구 결과 29
4.1. 외관 평가 29
4.2. 전기 전도율 (Electrical Conductivity) 31
4.3. EIS 측정 결과 34
4.4. 초분광 분석 (Hyperspectral Analysis) 36
4.5. 상관관계 분석 38
6. 결론 41
Reference 42
Appendix 45
Table 1. Assessment items for coating 13
Table 2. Conductivity and conductance 19
Table 3. Electromagnet wave 20
Table 4. Standard specification for highway bridge - types of heavy duty coating 23
Table 5. Specific data of coating samples 24
Table 6. NORSOK cycle test 26
Table 7. Average coating thickness 29
Table 8. Coating thickness and conductivity of the samples 31
Table 9. Specific conductivity data of initial sample and after NORSOK 25 cycles 32
Table 10. Specific impedance data at 0.1Hz by each NORSOK cycle 34
Table 11. Specific data for correlation analysis 38
Fig. 1. Bode plot 15
Fig. 2. Nyquist plot 15
Fig. 3. Schematic of equivalent circuit for organic coating sample 16
Fig. 4. Hyperspectral imaging spectrometry concept 21
Fig. 5. Multispectral and hyperspectral comparison 22
Fig. 6. Schematic of NORSOK cycle test 25
Fig. 7. Pictures of initial samples and samples after NORSOK cycle test 30
Fig. 8. Conductivity of bare metal for coating samples and initial samples 31
Fig. 9. Conductivity of initial sample and after NORSOK 25cycle 33
Fig. 10. Impedance characteristic at 0.1Hz based on NORSOK cycle test 35
Fig. 11. Spectral reflectance of Initial sample and average of spectral reflectance for NORSOK cycle test sample. 37
Fig. 12. Schematic of correlation analysis 39
Fig. 13. Schematic of correlation analysis (fluorocarbon coatings only) 40