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成百龍 서울대학교 1974 서울대학교 論文集 Vol.22 No.-
The energy distribution of photoprotons from ^31P irradiated with 17.0 Mev bremsstrahlung produced by betatron have been detected using the Ilford C2 nuclear emulsions (200 microns thick). Structures were observed in the energy spectrum which were anologues to those observed in the case of other light nuclei. These results agreed fairly well with previous data
이기정,서범식,양종석,성백룡,박대희,Lee, Ki-Joung,Seo, Bum-Sik,Yang, Jong-Seok,Seong, Baeg-Yong,Park, Dae-Hee 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.2
In this paper, semiconducting shield specimens for a DC cable is fabricated and characterized by measurement of volume resistance, tensile strength, and the coefficient of expansion to show the electrical and mechanical characteristics of the semiconducting shield. Due to the PTC phenomenon, the volume resistance at $25^{\circ}C$ increases rapidly in comparison to the volume resistance at $90^{\circ}C$. Since the compounding ratio of carbon black is low, the tensile strength and density become lower and the coefficient of expansion is increased. As the general specification of the tensile strength and density is $0.8kgf/mm^2$ and 150%, respectively, the fabricated specimen in this paper has excellent mechanical characteristic.
이기정,서범식,양종석,성백룡,박대희,Lee, Ki-Joung,Seo, Bum-Sik,Yang, Jong-Seok,Seong, Baeg-Yong,Park, Dae-Hee 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.1
In this paper, semiconducting shield specimens for a DC cable os fabricated and characterized by measurement of volume resistance, tensile strength, and the coefficient of expansion to show the electrical and mechanical characteristics of the semiconducting shield. Due to the PTC phenomenon, the volume resistance at $25^{\circ}C$ increases rapidly in comparison to the volume resistance at $90^{\circ}C$. Since the compounding ration of carbon black is low, the tensile strength and density become lower and the coefficient of expansion is increased. As the general specification of the tensile strength and density is $0.8kgf/mm^2$ and 150%, respectively, the fabricated specimen in this paper has excellent mechanical characteristic.
전력케이블용 XLPE절연체/ 나노 반도전층 재료의 열적 특성
양종석(Jong-Seok Yang),최성헌(Sung-hun Choi),박장현(Jabg-Hyeon Park),성백룡(Baek-Ryong Sung),이재형(Jaehyeung Lee),박대희(Dae-Hee Park) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.10
To improve the mean-life and the reliability of power cable, we have investigated specific heat (Cp). Specific-heat measurement temperature ranges of XLPE insulator were from 20[℃] to 90[℃], and the heating rate was 1[℃/min]. In case of semiconducting materials, the measurement temperature ranges of specific heat were from 20[℃] to 60[℃], and the heating rate was 1[℃/min]. From these experimental results, both specific heat were increased by heating rate because volume of materials was expanded according to rise in temperature. We could know that a small amount of CNT has a excellent thermal properties.
에칠렌 에칠 아크릴레이트/탄소나노튜브 복합체의 밀도와 분산성 측정
양종석(Jong-Seok Yang),이경용(Kyoung-Yong Lee),신동훈(Dong-Hoon Shin),성백룡(Baek-Ryong Sung),박대희(Dae-Hee Park) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
To improve density and smoothness of semiconducting materials in power cable, we have investigated those of semiconducting materials showed by changing the content of carbon black and Carbon Nanotube. They were produced as sheets after pressing for 20 minutes at 180[℃] with a pressure of 200[㎏/㎠]. The content of conductive carbon black and Carbon Nanotube were 30[wt%] and 2-6[wt%] respectively. As a result the smoothness was measured by JSM-6400.