CiNii Articles - Graphite

1

Effect of post weld heat treatment on the weld joints of spheroidal graphite cast iron joined with mild steel and austenitic stainless-steel filler materials [in Japanese]

TAKAHASHI Jyunya , NAKASHIMA Hitoshi , OJIMA Jun , FUJII Nobuyuki

… However, these studies did not examine preheating or PWHT.There have been no studies to date on the effects of heat treatment on the metallographic structure and mechanical properties of welded joints obtained using mild steel and austenitic stainless-steel filler materials.The aim of this study is to investigate the effect of PWHT on joints obtained when mild steel filler material and austenitic stainless steel-filler material are used to join spheroidal graphite cast iron.For the welding method, SMAW and GMAW were applied as in the previous studies. …

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY 39(1), 24-31, 2021

J-STAGE
2

Study on Prediction Model of Performance and Degradation of LFP/Graphite Lithium-ion Battery [in Japanese]

HASHIMOTO Tsutomu , MUNAKATA Hirokazu , KANAMURA Kiyoshi

… In this study, we measured the performance and life of LiFePO4/Graphite lithium-ion battery and analyzed their electrochemical and degradation characteristics. …

Electrochemistry, 2021

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3

Microstructural Observation of Dendrite and Its Surrounding Regions Formed during Solidification of Gray Cast Iron

Kishi Yoichi , Mochizuki Hideharu , Yajima Zenjiro

… Graphite flakes formed parallel to the dendrite branches were observed on the cross-sectional microstructures near the solid–liquid phase boundary. … The area around the dendrite, namely the region formed by eutectic solidification, was composed of perlite, ferrite, and graphite flakes. This Paper was Originally Published in Japanese in J. …

MATERIALS TRANSACTIONS, 2021

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4

Enrichment of Phosphorus from Iron Ore to Dicalcium-silicate Phase by Partial Reduction [in Japanese]

Maruoka Nobuhiro , Kubo Hironari

… In this study, we propose a new process for enriching phosphorus in the C2S phase by mixing high-P iron ore, CaO, and graphite in appropriate proportions and partially reducing it. …

Tetsu-to-Hagane, 2021

J-STAGE
5

Magnetic dispersive solid phase extraction using recycled-graphite for GO-Fe3O4-dithizone composite combined with FAAS for determination of lead in environmental samples

CHAIKHAN Pilaipan , UDNAN Yuthapong , AMPIAH-BONNEY Richmond J. , CHUACHUAD CHAIYASITH Wipharat

Analytical Sciences, 2021

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6

Hybrid Carbon Film Electrodes for Electroanalysis

NIWA Osamu , OHTA Saki , TAKAHASHI Shota , ZHANG Zixin , KAMATA Tomoyuki , KATO Dai , SHIBA Shunsuke

… Carbon materials have been widely used for electrochemical analysis and include carbon nanotubes, graphene, and boron-doped diamond electrodes in addition to conventional carbon electrodes, such as those made of glassy carbon and graphite. …

Analytical Sciences 37(1), 37-47, 2021

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7

Functionalization of Self-supporting Graphene with a High Grafting Yield for Hydrophilicity Improvement

Xin Guoxiang , Wang Mengmeng , Zhai Yao , Zhang Bangwen , Song Jinling , Liu Xiaoxu

… The functionalization of self-supporting graphene (SSG) which in-situ grows on a flexible graphite sheet is performed by an electrochemical exfoliation in a HCl solution and then a diazonium reaction using p-aminobenzenesulfonic acid. …

Chemistry Letters 50(1), 116-119, 2021

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8

Electrochemical N(CF3SO2)2− Intercalation/de-intercalation into Graphite Electrode as the Positive Electrode Reaction for Mg Secondary Batteries

SUZUKI Takumi , SAGANE Fumihiro

… (TFSA−) anion intercalation into graphite was studied, aiming at the use for Mg secondary batteries. … The results indicated the anion intercalation into graphite will be the attractive candidate for Mg secondary batteries. …

Electrochemistry 89(1), 12-18, 2021

IR J-STAGE
9

Enhancement of the Direct Electron Transfer-type Bioelectrocatalysis of Bilirubin Oxidase at the Interface between Carbon Particles

WANIBUCHI Mizue , KITAZUMI Yuki , SHIRAI Osamu , KANO Kenji

… Comparisons among the carbon composites constructed with Vulcan and exfoliated graphite (JSP) show that the interface between the Vulcan and JSP particles is more suitable for the DET-type bioelectrocatalysis of bilirubin oxidase (BOD) than that between the particles of the same type. …

Electrochemistry 89(1), 43-48, 2021

J-STAGE
10

Difference in Energization Mechanism caused by Change in Brush Ag Content in Sliding Energization of Steel Slip Ring and Ag Graphite Brush [in Japanese]

Fukuda Naoki , Sawa Koichiro , Ueno Takahiro

… However, the sliding contact energization characteristics of steel slip rings have not yet been elucidated.In this study, we examined the V-I characteristics of a steel slip ring (S45C) and a Ag graphite brush (Ag content 50, 60, 70, 80, and 90wt%). … Based on this, the current-carrying characteristics of the steel slip ring and Ag graphite brushes were clarified for each brush Ag content. …

IEEJ Transactions on Industry Applications 141(1), 7-17, 2021

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11

Application of Exfoliated Synthetic Graphene for Lithium-Ion Secondary Battery [in Japanese]

Shimoi Norihiro , Hirakawa Akira , Watanabe Yasunori , Umeya Shinjiro

われわれはリチウムイオン二次電池の充放電特性を向上させるための導電助剤として機械的剥離グラフェン（以下，剥離型グラフェン）を用いることで，一般的に使用されているカーボンブラック系のナノカーボン粒子やグラファイト粒子などの炭素材料と比較して，充放電サイクル特性の改善に有効であることを明らかにした。剥離型グラフェンは，二軸独立制御の三次元回転式ボールミルを用いてグラファイトから製造さ …

Journal of The Japan Institute of Electronics Packaging 24(1), 143-147, 2021

J-STAGE
12

Effect of Anisotropic Thermal Conductivity of Graphite Flakes and Interfacial Thermal Resistance on the Effective Thermal Conductivity of Graphite Flakes/Aluminum Composites

Zhao Yan , Sugio Kenjiro , Choi Yongbum , Gen Sasaki , Xu Zhefeng , Yu Jinku

… The effective thermal conductivity (ETC) of graphite flake (GF)/Al composites is significantly influenced by the anisotropic thermal conductivity of GFs and the interfacial thermal resistance between both components. …

MATERIALS TRANSACTIONS 62(1), 98-104, 2021

J-STAGE
13

Effect of Nanoparticle Concentration on the Specific Heat Capacity and Thermal Stability of Graphite Nanoparticle-based Molten Salt

Nusrat Jahan Salim , Md. Ashiqur Rahman

… This study targets at examining the effect of nanoparticle concentration on the specific heat capacity (Cp) and thermal stability of binary carbonate salt eutectic mixture (lithium carbonate and potassium carbonate at a molar ratio of 62:38, respectively) doped with three different weight percentages (2%, 4%, and 6%) of graphite nanoparticles (GNP). …

Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES) (6), 52-59, 2020-10-22

IR DOI
14

Potassium Difluorophosphate as an Additive for Potassium Ion Batteries

Huan Yang , Chen Chih-Yao , Hwang Jinkwang , Kubota Keigo , Matsumoto Kazuhiko , Hagiwara Rika

… The limited cyclability and inferior Coulombic efficiency of graphite negative electrodes have been major impediments to their practical utilization in potassium-ion batteries (PIBs). … Herein, for the first time, potassium difluorophosphate (KDFP) electrolyte additive is demonstrated as a viable solution to these bottlenecks by facilitating the formation of a stable and K⁺-conducting solid–electrolyte interphase (SEI) on graphite. …

ACS Applied Materials & Interfaces 12(32), 36168-36176, 2020-08-12

IR
15

Local current mapping of electrochemically-exfoliated graphene oxide by conductive AFM

Kubota Wataru , Utsunomiya Toru , Ichii Takashi , Sugimura Hiroyuki

… Electrochemical exfoliation of graphite is one of the promising methods for the mass-production of graphene oxide (GO). …

Japanese Journal of Applied Physics 59(SN), 2020-08-01

IR
16

Evaluation for Material Quality of Flake and Spheroidal Graphite Cast Iron with Hammering Sound Analysis Using Convolutional Neural Network [in Japanese]

平本雄一 , 岩見祐貴 , 菅野利猛 , 篠原美月 , 内田希 , 中江秀雄

鋳造工学 = Journal of Japan Foundry Engineering Society 92(8), 428-433, 2020-08
17

3. Reactor Physics and Reactor Engineering

… Nauchi et al.(CA3102) [139]CO3-4 Reactor Noise Power-Spectral Analysis for a Graphite-Moderated and -Reflected Core (II) /A. … Kitamura(CA3106) [141]CO3-6 Reactor Physis Experiment in Graphite Moderation System for HTGR (II) /Y. …

KURNS Progress Report (2019), 137-147, 2020-08

IR
18

Potassium single cation ionic liquid electrolyte for potassium-ion batteries

Yamamoto Hiroki , Chen Chih-Yao , Kubota Keigo , Matsumoto Kazuhiko , Hagiwara Rika

… The electrolyte was successfully used with a graphite negative electrode, enabling the reversible intercalation/deintercalation of K⁺, as confirmed by X-ray diffraction. …

The Journal of Physical Chemistry B 124(29), 6341-6347, 2020-07-23

IR
19

Fabrication of graphite-reinforced aluminum alloy composite material by friction stir processing [in Japanese]

尾和智信 , 小山将生 , 若林恭成

長野県工科短期大学校紀要 (23), 1-5, 2020-07
20

X-ray Fluorescence Sulfur/Chlorine-in-Oil-Analyzer MESA-7220V2 [in Japanese]

上田英雄 , ポールマイク

Readout : Horiba technical reports (54), 66-69, 2020-07

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