Enhanced electrical property of graphite/Al2O3 composite fabricated by reductive sintering of gel-casted body using cross-linked epoxy polymer

被引：17
作者：
Funahashi, Yoshiaki [1 ]
Xin, Yunzi [2 ]
Kato, Kunihiko [2 ]
Nguyen, Huu Hien [2 ]
Shirai, Takashi [1 ,2 ]
机构：
[1] Nagoya Inst Technol, Grad Sch Engn, Dept Life Sci & Appl Chem, Showa Ku, Gokiso Cho, Nagoya, Aichi 4668555, Japan
[2] Nagoya Inst Technol, Adv Ceram Res Ctr, Showa Ku, Gokiso Cho, Nagoya, Aichi 4668555, Japan
来源：
JOURNAL OF ADVANCED CERAMICS | 2022年 / 11卷 / 04期
关键词：
ceramic composite; gel-casting; reductive sintering; cross-linking; electrical property; graphitization; PEROVSKITE SOLAR-CELLS; MECHANICAL-PROPERTIES; CARBON NANOTUBES; THERMAL-DEGRADATION; POROUS ALUMINA; CERAMIC-MATRIX; GRAPHENE; CONDUCTIVITY; BEHAVIOR; MICROSTRUCTURE;
D O I：
10.1007/s40145-021-0552-4
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In the present study, graphite/alumina composites are fabricated via reductive sintering of gel-casted green bodies with structurally controlled cross-linked epoxy polymers for the first time. The cross-linking degrees of polymers are tuned by the amount ratio of epoxy monomer/polyvinyl alcohol cross-linker utilized in gel-casting process. Superior electrical properties with respect to 5-fold enhanced electrical conductivity and 2-fold higher carrier mobility are successfully achieved in graphite/alumina composite fabricated from cross-linked epoxy polymer, whose phenomenon is attributed to the excellent conductive path in ceramic matrix established by highly uniform network with improved graphitization degree.
引用
收藏
页码：523 / 531
页数：9
相关论文
共 56 条
[1]   Effect of graphene nano-platelet reinforcement on the mechanical properties of hot pressed boron carbide based composite [J].
Alexander, Rajath ;
Murthy, T. S. R. Ch. ;
Ravikanth, K. V. ;
Prakash, Jyoti ;
Mahata, Tarasankar ;
Bakshi, Srinivasa Rao ;
Krishnan, Madangopal ;
Dasgupta, Kinshuk .
CERAMICS INTERNATIONAL, 2018, 44 (08) :9830-9838
[2]   Highly anisotropic graphene/boron nitride hybrid aerogels with long-range ordered architecture and moderate density for highly thermally conductive composites [J].
An, Fei ;
Li, Xiaofeng ;
Min, Peng ;
Li, Hongfei ;
Dai, Zhen ;
Yu, Zhong-Zhen .
CARBON, 2018, 126 :119-127
[3]   High toughness carbon-nanotube-reinforced ceramics via ion-beam engineering of interfaces [J].
Athanasiou, Christos E. ;
Zhang, Hongliang ;
Ramirez, Cristina ;
Xi, Jianqi ;
Baba, Tomonori ;
Wang, Xing ;
Zhang, Wei ;
Padture, Nitin P. ;
Szlufarska, Izabela ;
Sheldon, Brian W. .
CARBON, 2020, 163 :169-177
[4]   Optimization of Alumina Slurry for Oxide-Oxide Ceramic Composites Manufactured by Injection Molding [J].
Billotte, Catherine ;
Fotsing, Edith Roland ;
Ruiz, Edu .
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, 2017, 2017
[5]   Raman spectroscopic investigation of carbon-based materials and their composites. Comparison between carbon nanotubes and carbon black [J].
Bokobza, Liliane ;
Bruneel, Jean-Luc ;
Couzi, Michel .
CHEMICAL PHYSICS LETTERS, 2013, 590 :153-159
[6]   The effects of temperature and frequency on the dielectric properties, electromagnetic interference shielding and microwave-absorption of short carbon fiber/silica composites [J].
Cao, Mao-Sheng ;
Song, Wei-Li ;
Hou, Zhi-Ling ;
Wen, Bo ;
Yuan, Jie .
CARBON, 2010, 48 (03) :788-796
[7]   Anisotropic mechanical and functional properties of graphene-based alumina matrix nanocomposites [J].
Celik, Y. ;
Celik, A. ;
Flahaut, E. ;
Suvaci, E. .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2016, 36 (08) :2075-2086
[8]   Graphene for tough and electroconductive alumina ceramics [J].
Centeno, A. ;
Rocha, V. G. ;
Alonso, B. ;
Fernandez, A. ;
Gutierrez-Gonzalez, C. F. ;
Torrecillas, R. ;
Zurutuza, A. .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2013, 33 (15-16) :3201-3210
[9]   High efficiency perovskite solar cells using nitrogen-doped graphene/ZnO nanorod composite as an electron transport layer [J].
Chandrasekhar, P. S. ;
Dubey, Ashish ;
Qiao, Qiquan .
SOLAR ENERGY, 2020, 197 :78-83
[10]   Enhanced electromagnetic interference shielding properties of silicon carbide composites with aligned graphene nanoplatelets [J].
Chen, Chen ;
Tan, Yongqiang ;
Han, Xiaochun ;
Luo, Heng ;
Zeng, Sifan ;
Peng, Shuming ;
Zhang, Haibin .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2018, 38 (16) :5615-5619
123456