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논문 기본 정보

자료유형
학술대회자료
저자정보
Jeong-hwan Jang (Pusan National University) Byeong-don Joo (Pusan National University) Sung-min Mun (Pusan National University) Young-hoon Moon (Pusan National University)
저널정보
한국소성·가공학회 기타자료 NUMIFORM 2010
발행연도
2010.6
수록면
1,233 - 1,238 (6page)

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Direct laser melting (DLM) technology has been used to fabricate the micro-pattern of the bipolar plate in a direct methanol fuel cell (DMFC). A suitable approach to enhance the performance of the bipolar plate has been performed to optimize the DLM process. To fabricate the micro pattern, a DLM process with 316L stainless steel powder has been used. For the melted height of 1 mm, the DLM process conditions were optimized such as; laser power of 200W, scan rate of 36.62 mm/s and the 8-layer structures. To characterize the effect of material type, the bipolar plates of various types were analyzed. In case of the 316L stainless steel DLM patterning, a current density of 297 mA/㎠ was achieved but the case of the 316L stainless steel plate, 248 mA/㎠ current density that is lower than that of other materials was achieved. The overall cell performance of 316L stainless steel DLM patterning bipolar plate was better than that of the 316L stainless steel plate. This has significant advantages for the micropatterning using DLM process. The use of 316L stainless steel powder material as micro pattern material will reduce the machining cost as well as volume of the fuel cell stack.

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Abstract
INTRODUCTION
DETAILS OF THE EXPERIMENT
RESULTS AND DISCUSSION
SUMMARY
REFERENCES

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