[1]李正操,付晓刚,陈东钺,等.各向同性石墨结构与工艺条件的关系[J].深圳大学学报理工版,2010,27(2):137-141.
 LI Zheng-cao,FU Xiao-gang,CHEN Dong-yue,et al.The relationship of structure and processing condition of isotopic graphite[J].Journal of Shenzhen University Science and Engineering,2010,27(2):137-141.
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各向同性石墨结构与工艺条件的关系()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第27卷
期数:
2010年2期
页码:
137-141
栏目:
材料科学
出版日期:
2010-04-30

文章信息/Info

Title:
The relationship of structure and processing condition of isotopic graphite
文章编号:
1000-2618(2010)02-0137-05
作者:
李正操1付晓刚12陈东钺1张政军1
1)清华大学材料科学与工程系 新型陶瓷与精细工艺国家重点实验室,北京 100084
2)中国原子能科学研究院,北京 102413
Author(s):
LI Zheng-cao1FU Xiao-gang12CHEN Dong-yue1and ZHANG Zheng-jun1
1)State Key Laboratory of New Ceramic and Fine Processing,Department of Material Science and Engineering,Tsinghua University,Beijing 10084,P.R. China
2)China Institute of Atomic Energy,Beijing 100084,P.R.China
关键词:
工程材料各向同性石墨各向同性度气孔率微晶尺寸石墨化程度
Keywords:
engineering materialisotopic graphiteisotropy ratioporosity crystallite sizedegree of graphitization
分类号:
TB 32
文献标志码:
A
摘要:
对比研究国外石墨IG-11、NBG-18和国产石墨HSM-SC的各向同性度、气孔直径、气孔形貌和微晶状态,探讨其结构差异.研究发现,国外石墨在各向同性度的控制上优于国产石墨;采用细颗粒配料方式下焦颗粒平均直径对石墨内部气孔直径的大小影响较大;在相同工艺条件下,采用细颗粒配料方式的石墨力学性能更好;细颗粒各向同性石墨质量与改进混捏均匀性有重要联系;利用X射线衍射谱中石墨(002)衍射峰的半高宽可以定性评价石墨化程度. 探讨了国外各向同性石墨制备工艺中值得借鉴的地方.
Abstract:
The isotropy ratio,porosity,condition of pore and apparent crystallite size for some selected isotropic graphite grades including IG-11,NBG-18,HSM-SC were discussed. The method of producing isotropic graphite, according to difference of microstructure of graphites above, was also discussed. The results show that IG-11 and NBG-18 are better than HSM-SC in isotropy ratio control.It is found that the pore diameter is essentially related to grain size in the processing of a fine grain graphite.Graphite made from the small grain size shows better properties.The mixing techniques of small grain are related to the quality of a fine grain graphite.A comparison of degree of graphitization was established by X-ray diffraction method using half-width of graphite (002) peak.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2009-06-10;修回日期:2010-02-11
基金项目:国家自然科学基金资助项目(50701026)
作者简介:李正操(1975-),男(满族),辽宁省铁岭市人,清华大学副教授、博士.E-mail:zcli@tsnghua.edu.cn
更新日期/Last Update: 2010-05-08