Title :
Microwave sintering and field emission property of CNTs/diamond composite
Author :
Shan, Yun ; Zeng, Baoqing ; Dong, Jianhui ; Tian, Shikai ; Xie, Min
Author_Institution :
Nat. Key Lab. of High Power Vacuum Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Carbon nanotubes (CNTs)/diamond composite were synthesized by microwave-sintering method and the field emission property was studied. The binding energy of two materials become larger and the carbonization of the diamond less, compare to sintering in the common tube furnace. Scanning electron microscopy (SEM) was used to evaluate the morphological and the structural features. The CNTs were well-proportioned dispersed in composite and formed emission tip. The results of field emission showed that the field emission of CNTs/diamond composite was improved, the current density reached 15 mA/cm2, compare to sintering in a horizontal tube furnace (0.88 mA/cm2).
Keywords :
carbon nanotubes; composite materials; diamond; field emission; furnaces; scanning electron microscopy; sintering; C; binding energy; carbon nanotubes/diamond composite; carbonization; common tube furnace; field emission property; microwave sintering; scanning electron microscopy; Carbon nanotubes; Cathodes; Current density; Electromagnetic heating; Furnaces; Microwave theory and techniques; Organic materials; Plasma temperature; Scanning electron microscopy; Thermal conductivity; CNTs/diamond composite; field emission; microwave sintering;
Conference_Titel :
Vacuum Electronics Conference, 2009. IVEC '09. IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-3500-5
Electronic_ISBN :
978-1-4244-3501-2
DOI :
10.1109/IVELEC.2009.5193416
