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해상구조물의 방식설계 최적화를 위한 설계요건 분석 및 시간의존적 방식성능 해석
박재철(Jae-Cheul Park),최유열(Yoo-Youl Choi),편강일(Kang-Il Pyeon),천강우(Kang-Woo Chun),장화섭(Hwa-Sup Jang),노길태(Gill-Tae Roh) 한국표면공학회 2016 한국표면공학회지 Vol.49 No.5
The offshore structures exposed to harsh corrosive such as the marine environment is essential for the quality management technique throughout the life cycle of initial design, construction and operation. Also, it should satisfy the design life and ensure the safety of the substructure with optimization of design process. This study focused on optimization of design condition for corrosion protection of wind turbine structure and computational analyzing was performed to evaluate the performance of corrosion protection with utilizing practical experimental data. We expect this analytical study contribute to improve the corrosion maintenance stability and economical efficiency of designing wind turbine structures. As a result, the design of cathodic protection system using sacrificial anodes required accurate identification of current density in order to meet the long term design life, which can be seen that a change of structure surface’s coating breakdown factor is one of the key influencing factors.
용융탄산염에서 Co를 코팅한 NiO 공기극의 용해도에 대해 Cathode gas 분압이 미치는 영향
노길태,류보현,한종희,남석우,임태훈,홍성안,임종주 한국공업화학회 2004 응용화학 Vol.8 No.1
NiO cathode dissolution is considered as one of the serious problems determining the MCFC life time. In this work, 6wt% and 12 wt% Co-coated specimens were fabricated by electro plating method and NiO cathode as reference. The aim of this experiment is to investigate Co coating effect by determination solubility at the variable cathode gas partial pressure in Li/K and Li/Na electrolytes. To obtain the suppression factors of NiO dissolution, Atomic Adsorption Spectroscopy (AAS), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) were used.