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RISS 인기검색어
- 검색키워드
- 주제어 : Residual graphite (검색결과 6 건)
- 무료
- 기관 내 무료
- 유료
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Ko, Young-Shin,Oh, Won-Chun 한국탄소학회 2007 Carbon Letters Vol.8 No.3
The properties and electrochemical characteristics of anode material using pitch-coated graphite residue compounds by heat-treatment at $600^{\circ}C$ for 1 hour were investigated. The distance of layers of pitch-coated graphite residual compounds was 3.3539 ${\AA}$, which was as same as that of graphite. Its electrochemical and charge discharge characteristics were tested according to different four types of carbon material, natural graphite, pitch-coated graphite, amorphous graphite and pitch-coated graphite residual compounds, respectively. So it was shown the best charge-discharge characteristics in all of the samples. For the electrochemical and charge-discharge characteristics, although pitch-coated graphite residual compounds had different carbon contents 70% and 80%, these two samples were shown good electrochemical and charge-discharge characteristics.
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Young-Shin Ko,Won-Chun Oh 한국탄소학회 2007 Carbon Letters Vol.8 No.3
The properties and electrochemical characteristics of anode material using pitch-coated graphite residue compounds by heat-treatment at 600℃ for 1 hour were investigated. The distance of layers of pitch-coated graphite residual compounds was 3.3539 a, which was as same as that of graphite. Its electrochemical and charge discharge characteristics were tested according to different four types of carbon material, natural graphite, pitch-coated graphite, amorphous graphite and pitch-coated graphite residual compounds, respectively. So it was shown the best charge-discharge characteristics in all of the samples. For the electrochemical and charge-discharge characteristics, although pitch-coated graphite residual compounds had different carbon contents 70% and 80%, these two samples were shown good electrochemical and charge-discharge characteristics.
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Young-Shin Ko,Won-Chun Oh 한국탄소학회 2007 Carbon Letters Vol.8 No.3
The properties and electrochemical characteristics of anode material using pitch-coated graphite residue compoundsby heat-treatment at 600oC for 1 hour were investigated. The distance of layers of pitch-coated graphite residual com-pounds was 3.3539 , which was as same as that of graphite. Its electrochemical and charge-discharge characteristicswere tested according to different four types of carbon material, natural graphite, pitch-coated graphite, amorphousgraphite and pitch-coated graphite residual compounds, respectively. So it was shown the best charge-discharge charac-teristics in all of the samples. For the electrochemical and charge-discharge characteristics, although pitch-coatedgraphite residual compounds had different carbon contents 70% and 80%, these two samples were shown good electro-chemical and charge-discharge characteristics.
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General Paper : Cumulative Damage Theory in Fatigue of Graphite/Epoxy [±45]s Composites
( Deuk Man An ) 한국복합재료학회 2015 Composites research Vol.28 No.4
The phenomenological evolution laws of damage can be defined either based on residual life or residual strength. The failure of a specimen can be defined immediately after or before fracture. The former is called in this paper by “failure defined by approach I” and the latter “failure defined by approach II.” Usually at failure there is a discontinuity of loading variables and, because of this, damage at failure is discontinuous. Therefore the values of damage at failure by two different approaches are not the same. Based on this idea the sequence effects of the phenomenological evolution law of damage given by dD/dN = g(D)f(Φ) were studied. Thin-walled graphite/epoxy tubes consisting of four of [±45]s laminates were used for the experimental study of sequence effects and the effects of mean stress on fatigue life. It was found that the sequence effects in two step uniaxial fatigue for [±45]s graphite/epoxy tubular specimen showed that a high-low block loading sequence was less damaging than a low-high one.
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아공정 구상흑연주철의 Fading 거동에 미치는 탄소당량의 영향
박헌범 ( Hun Berm Park ),박상준 ( Sang Jun Park ) 한국주조공학회 2004 한국주조공학회지 Vol.24 No.5
N/A The effect of carbon equivalent on the fading behavior of hypoeutectic ductile cast iron was investigated. The carbon content was slightly increased right after graphite spheroidization treatment and remained almost constant with holding at 1,490℃ after 4 minute. The residual magnesium content was decreased slowly with holding. The empirical equation expressing the relationship between this and holding time was proposed ; C = C_(o) - P×t. The proportionality constant, P, was inversely proportional to carbon content.
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용융 Si-C-SiC계에서 $\beta$-SiC 생성기구
서기식,박상환,송휴섭 한국세라믹학회 1999 한국세라믹학회지 Vol.36 No.6
${\beta}$-SiC formation mechanism in Si melt-C-SiC system with varying in size of carbon source was investigated. A continuous reaction sintering process using Si melt infiltration method was adopted to control the reaction sintering time effectively. It was found that ${\beta}$-SiC formation mechanism in Si melt-C-SiC system was directly affected by the size of carbon source. In the Si melt-C-SiC system with large carbon source ${\beta}$-SiC formation mechanism could be divided into two stages depending on the reaction sintering time: in early stage of reaction sintering carbon dissolution in Si melt and precipitation of ${\beta}$-SiC was occurred preferentially and then SIC nucleation and growth was controlled by diffusion of carbon throughy the ${\beta}$-SiC layer formed on graphite particle. Furthmore a dissolution rate of graphite particles in Si melt could be accelerated by the infiltration of Si melt through basal plane of graphite crystalline.
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