| 硝酸预处理生焦制备无粘结剂炭材料的研究 |
| |
| 引用本文： | 杨胜,夏金童,张艳,赵敬利,赵庆才,李允柱,刘奉来.硝酸预处理生焦制备无粘结剂炭材料的研究[J].轻金属,2012(2):48-51. |
| |
| 作者姓名： | 杨胜 夏金童 张艳 赵敬利 赵庆才 李允柱 刘奉来 |
| |
| 作者单位： | 1. 湖南大学材料科学与工程学院,湖南长沙,410082
2. 济南澳海炭素有限公司,济南平阴,250403 |
| |
| 摘 要： | 采用不同浓度的硝酸处理生焦粉末,然后在150MPa下成型、经1000℃焙烧,制得体积密度为1.61 g/cm3、抗压强度为82.3MPa、抗折强度为40.2MPa、电阻率为62μ Ωm的无粘结剂炭样品.通过样品的扫描电镜图以及热分析,并引入R值分析得出:硝酸处理生焦,会引入一定量的氧、氮原子,使低分子碳氢化合物熔融组分含量适宜,提高了生焦的自烧结性.
|
| 关 键 词： | 生焦 硝酸 无粘结剂炭材料 样品性能 |
Research on preparation of binderless carbon materials with green coke preprocessed by nitric acid |
| |
| YANG Sheng
,
XIA Jin-tong
,
ZHANG Yan
,
ZHAO Jing-li
,
ZHAO Qing-cai
,
LI Yun-zhu
,
LIU Feng-lai.Research on preparation of binderless carbon materials with green coke preprocessed by nitric acid[J].Light Metals,2012(2):48-51. |
| |
| Authors: | YANG Sheng XIA Jin-tong ZHANG Yan ZHAO Jing-li ZHAO Qing-cai LI Yun-zhu LIU Feng-lai |
| |
| Affiliation: | 1.College of Materials Science and Engineering,Hunan University,Changsha 410082,China;2.Carbon Ltd.of Jinan Aohai,Pingyin 250403,China) |
| |
| Abstract: | The binder-less carbon samples which obtained the volume density of 1.61g/cm3,compressive strength of 82.3MPa,the flexural strength of 40.2MPa and the resistivity of 62μΩm were prepared with green coke powders pretreated by different concentrations of nitric acid.Then they were moulded under 150MPa and calcined at 1000 ℃.By means of SEM and thermal analysis and introducing R-value,it was concluded that a certain amount of oxygen and nitrogen atoms were introduced to the coke by nitric acid treatment,which would improve the self-sinterability of the pretreated coke ascribing to its melting components consisting of suitable part of low molecular weight hydrocarbon. |
| |
| Keywords: | green coke nitric acid binder-less carbon material properties |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
