Advantages of natural microcrystalline graphite filler over petroleum coke in isotropic graphite preparation

doi:10.1016/j.carbon.2015.03.068

IMECH-IR > 微重力重点实验室

	Advantages of natural microcrystalline graphite filler over petroleum coke in isotropic graphite preparation
	Shen K; Huang ZH; Hu KX(胡开鑫); Shen WC; Yu SY; Yang JH; Yang GZ; Kang FY; Kang, FY (reprint author), Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China.
发表期刊	CARBON
	2015-08
卷号	90 页码:197-206
ISSN	0008-6223
摘要	Graphite materials are used in high-temperature gas-cooled reactor (HTR) as moderator and reflector. Nuclear graphite is currently manufactured using coke as the filler; however, improvements in the performance of nuclear graphite are anticipated in order to enhance the safety and lifetime of HTRs. Natural microcrystalline graphite (MG), which is a metamorphic product of coal, is an emerging candidate as filler material. This paper proposes the approach of preparing isotropic graphite using MG fillers. The characterization results of MG ores and purified powder indicate a polycrystalline and near-isotropic structure of MG particles. Thus, near-isotropic graphite with an isotropy ratio of 1.10-1.15 can be easily obtained via cold isostatic pressing. The thermal diffusivity of MG-based green body is much higher than that of coke-based one, therefore facilitates the baking step. The advantages of MG-based graphite also include a high degree of graphitization, and a low coefficient of thermal expansion, both of which are highly beneficial to nuclear applications. As a result, MG exhibits a large potential for the application in isotropic nuclear graphite. (C) 2015 Elsevier Ltd. All rights reserved.
DOI	10.1016/j.carbon.2015.03.068
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000356129200023
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
项目资助者	National Natural Science Foundation of China [51402166] ; China and China Postdoctoral Science Foundation [2014M550723]
课题组名称	NML流动稳定性与复杂流动
论文分区	一类
引用统计	被引频次：43[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/54971
专题	微重力重点实验室
通讯作者	Kang, FY (reprint author), Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China.
推荐引用方式 GB/T 7714	Shen K,Huang ZH,Hu KX,et al. Advantages of natural microcrystalline graphite filler over petroleum coke in isotropic graphite preparation[J]. CARBON,2015,90:197-206.
APA	Shen K.,Huang ZH.,Hu KX.,Shen WC.,Yu SY.,...&Kang, FY .(2015).Advantages of natural microcrystalline graphite filler over petroleum coke in isotropic graphite preparation.CARBON,90,197-206.
MLA	Shen K,et al."Advantages of natural microcrystalline graphite filler over petroleum coke in isotropic graphite preparation".CARBON 90(2015):197-206.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
IMCAS-J2015-103.pdf（2199KB）	期刊论文	出版稿	开放获取	CC BY-ND	浏览下载