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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 발행연도
- 2014
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이 논문의 연구 히스토리 (2)
2014
Application of DBD plasma treatment on surface modification of stainless steel sheet at atmospheric pressure
SURESH RAI
,
양종근
,
오민규
외 4명
한국진공학회 학술발표회초록집
2014.08
학술대회자료
Application of DBD plasma treatment on surface modification of fuel cell stack at atmospheric pressure
SURESH RAI
에너지화학공학
2014.01
학위논문
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초록· 키워드
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DBD plasma treatment for surface modification has been gradually finding attention in
industrial application. Modifying surface property such as hydrophilicity on the stainless steel is
growing popularity. For the fuel cell stack, stainless steel sheets are used, which were treated
by an atmospheric pressure DBD plasma treatment source. The experimental set up was
designed and developed in order to modify the surface properties of thin sheets to get optimum
hydrophilic condition and higher surface energy with ageing effect. Five different surfaces
were treated for different durations of time. DBD plasma discharge, parallel plate configuration
was used with an air gap of four mm. A high voltage of 10kV was supplied for plasma
discharge on to the surface of the sheets. Surface characteristics of the substrate were analyzed
by using water contact angle and wetting energy analyzer; a goniometer, 3D nano surface
profiler, field emission Scanning Electron microscopy (FE-SEM) and XRD.
After plasma treatment, the surface’s average water contact angle and surface wetting energy
were found to be improved. This was investigated for 14 days by using a goniometer and ageing
in an air. Different substrates treated in different times, showed different results. The shorter the
discharge time, the longer the hydrophobic recovering of the surface. The plasma surface
treatments for five second shows the optimum condition for surface treatment of stainless steel
at atmospheric pressure DBD plasma.
industrial application. Modifying surface property such as hydrophilicity on the stainless steel is
growing popularity. For the fuel cell stack, stainless steel sheets are used, which were treated
by an atmospheric pressure DBD plasma treatment source. The experimental set up was
designed and developed in order to modify the surface properties of thin sheets to get optimum
hydrophilic condition and higher surface energy with ageing effect. Five different surfaces
were treated for different durations of time. DBD plasma discharge, parallel plate configuration
was used with an air gap of four mm. A high voltage of 10kV was supplied for plasma
discharge on to the surface of the sheets. Surface characteristics of the substrate were analyzed
by using water contact angle and wetting energy analyzer; a goniometer, 3D nano surface
profiler, field emission Scanning Electron microscopy (FE-SEM) and XRD.
After plasma treatment, the surface’s average water contact angle and surface wetting energy
were found to be improved. This was investigated for 14 days by using a goniometer and ageing
in an air. Different substrates treated in different times, showed different results. The shorter the
discharge time, the longer the hydrophobic recovering of the surface. The plasma surface
treatments for five second shows the optimum condition for surface treatment of stainless steel
at atmospheric pressure DBD plasma.
목차
CHAPTER I 1INTRODUCTION 11.1 Brief Introduction 11.2 1.2 Dielectric Barrier Discharge (DBD) at Atmospheric Pressure 31.3 surface modifications with atmospheric plasma 51.4 Benefits and Application of surface modification(Adhesion and wettability) 61.5 Fuel cell stack and Stainless steel 71.6 Objectives 91.7 Motivation for the studies 10CHAPTER II 11MATERIALS AND METHODS 111.4 2.1 Experimental set-up 112.1.1 Dielectric Barrier Discharge(DBD) 112.1.2 Diagnostic Apparatus(instruments) 15CHAPTER III 17RESULTS AND DISCUSSION 173.1 EFFECT OF AGEING TIME IN AIR OF PLASMA TREATED STAINLESS STEEL 173.2 EXAMINATION OF SURFACE ROUGHNESS AFTER DBD PLASMA TREATMENT 24CHAPTER IV 32CONCLUSION 32ACKNOWLEDGEMENTS 34REFERENCES 36
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