| 细粒石墨材料的热压制备 |
| |
| 引用本文： | 邓念,袁观明,别望望,董志军,张贵萍,赵杰,李轩科.细粒石墨材料的热压制备[J].武汉冶金科技大学学报,2010(4):410-416. |
| |
| 作者姓名： | 邓念 袁观明 别望望 董志军 张贵萍 赵杰 李轩科 |
| |
| 作者单位： | [1]武汉科技大学化学工程与技术学院,湖北武汉430081 [2]优科能源（漳州）有限公司,福建漳州363601 [3]陕西冶金设计研究院有限公司,陕西西安710032 |
| |
| 基金项目： | 武汉科技大学科学基金资助项目（2008TD06） |
| |
| 摘 要： | 以细粒石墨粉为原料、改质和高温煤沥青为黏结剂,采用热压成型工艺制备炭块,并对其进行炭化和石墨化处理后得到石墨块体。结果表明,随着热处理温度的上升,热压制备炭块的体积密度和电阻率发生了明显的变化,与改质沥青相比,以高残炭率沥青为黏结剂所制细粒石墨材料具有较高的体积密度和较低的电阻率;X射线衍射XRD和扫描电镜SEM分析表明,细粒石墨在块体材料中具有明显的取向性。
|
| 关 键 词： | 热压 细结构 石墨材料 取向 |
Hot press preparation of fine grained graphite |
| |
| Authors: | Deng Nian Yuan Guanming Bie Wangwang Dong Zhijun Zhang Guiping Zhao Jie Li Xuanke |
| |
| Affiliation: | 1.College of Chemical Engineering and Technology,Wuhan University of Science and Technology,Wuhan 430081,China;2.Yoku Energy Technology Limited,Zhangzhou 363601,China;3.Shanxi Metallurgical Design and Research Institute Co.Ltd.,Xi＇an 710032,China) |
| |
| Abstract: | Using fine grained graphite powders as starting material and modified,high-temperature coal pitches as binder,the fine grained carbon materials were prepared using a hot press molding method.The result shows that the bulk density and electrical resistivity of carbon blocks change obviously with the heat-treatment temperature.In comparison with the graphite block produced from the modified pitch,the graphite block prepared from the high-temperature pitch possesses a higher bulk density and lower electrical resistivity.X-ray diffraction（XRD） and scanning electron microscopy（SEM） analyses show that the graphite block has an obvious orientation structure. |
| |
| Keywords: | hot press fine grain graphite material orientation |
| 本文献已被 维普 等数据库收录！ |
|
