루테늄(Ru) 타겟소재 제조를 위한 방전 플라즈마 소결 공정 열해석 시뮬레이션 (Thermal Characteristic Simulation of Spark Plasma Sintering (SPS) Process for Fabrication of Ruthenium Target Materia)

서지정보

· 발행기관 : 대한금속·재료학회
· 수록지 정보 : 대한금속·재료학회지 / 54권 / 4호 / 246 ~ 251페이지
· 저자명 : 남효은, 박현국, 장준호, 조규종, 오익현

초록

In this study, we have demonstrated that the Marc v.11 simulation program, based on heat transfer, was able to estimate the thermal distribution of a graphite mold and sintered compact, for sintering a Ruthenium (Ru) target material. The thermal distribution simulation analysis was conducted as a function of setting temperatures to obtain basic thermal behaviors, and to determine whether physical properties such as the density, grain size and compactness of the sintered Ru target material were influenced by temperature distribution in the graphite mold. It was found that a very small difference in temperature between the center and edge of the sintered compact could be observed at the simulation temperature of 1200 ℃. The highest relative density of 99.1% was achieved when the Ru target material was sintered at 1200 ℃ by spark plasma sintering(SPS). Also, it was confirmed that the grain size of the sintered Ru target was considerably increased with increasing sintering temperature, in spite of the fast heating rate and short dwell time. From these results, a very meaningful thermal characteristic simulation technique was confirmed that can predict the optimized conditions needed to obtain high quality sintered materials prior to SPS process.

영어초록

In this study, we have demonstrated that the Marc v.11 simulation program, based on heat transfer, was able to estimate the thermal distribution of a graphite mold and sintered compact, for sintering a Ruthenium (Ru) target material. The thermal distribution simulation analysis was conducted as a function of setting temperatures to obtain basic thermal behaviors, and to determine whether physical properties such as the density, grain size and compactness of the sintered Ru target material were influenced by temperature distribution in the graphite mold. It was found that a very small difference in temperature between the center and edge of the sintered compact could be observed at the simulation temperature of 1200 ℃. The highest relative density of 99.1% was achieved when the Ru target material was sintered at 1200 ℃ by spark plasma sintering(SPS). Also, it was confirmed that the grain size of the sintered Ru target was considerably increased with increasing sintering temperature, in spite of the fast heating rate and short dwell time. From these results, a very meaningful thermal characteristic simulation technique was confirmed that can predict the optimized conditions needed to obtain high quality sintered materials prior to SPS process.

참고자료

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