Mechanical and electrical properties of MCMB/Chopped carbon fiber composite with different bead size

被引：8

作者：

Im, Ui-Su ^{[1
,2
]}

Kim, Jiyoung ^{[3
]}

Lee, Byung-Rok ^{[2
]}

Peck, Dong-Hyun ^{[1
,2
]}

Jung, Doo-Hwan ^{[1
,2
]}

机构：

[1] Korea Univ Sci & Technol, Dept Adv Energy & Technol, 102 Gajeong Ro, Daejeon 305350, South Korea

[2] Korea Inst Energy Res, New & Renewable Energy Res Div, 217 Gajeong Ro, Daejeon 34129, South Korea

[3] Sungkyunkwan Univ, Sch Chem Engn, 2066 Seobu Ro, Suwon 16419, Gyeonggi Do, South Korea

来源：

SCIENTIFIC REPORTS | 2019年 / 9卷 / 1期

关键词：

MESOCARBON MICROBEADS MCMB; HIGH-PERFORMANCE MATERIALS; HIGH-PRESSURE; GRAPHITE; MICROSTRUCTURE; CONDUCTIVITY; TEMPERATURE; NANOCOMPOSITES; STABILIZATION; NANOTUBES;

D O I：

10.1038/s41598-019-43480-4

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The carbonization and graphitization of carbon/carbon (C/C) composites prepared from mesocarbon microbeads (MCMB) and chopped carbon fiber (CCF) have been studied with a wide range of temperatures, CCF contents and MCMB sizes. Three different sizes of MCMB were prepared with coal tar pitch at three temperatures, 420, 430 and 440 degrees C, and identified as about 12.8, 16.0 and 20.1 mu m, respectively. Each size of MCMB was mixed with CCFs at ratios of 2, 4, 6 and 8 wt. % and formed into block shape. After carbonization at 1200 degrees C, carbonized C/C blocks (CCBs) were graphitized at 2000, 2400 and 2800 degrees C. The CCB prepared with CCF content of 2 wt. % and an MCMB size of 16.0 mu m exhibited the highest flexural strength of about 151 MPa. The graphitized C/C block (GCB) with CCF content of 2 wt. %, which was graphitized at 2000 degrees C showed the highest flexural strength of about 159 MPa.

引用

页数：8

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