Title :
Ceramics sintering using a 24 GHz gyrotron system
Author :
Mitsudo, S. ; Hoshizuki, H. ; Matsuura, K. ; Saji, T. ; Idehara, T. ; Glyavin, M. ; Eremeev, A. ; Honda, T. ; Iwai, Y. ; Nishi, H. ; Kitano, A. ; Ishibashi, J.
Author_Institution :
Res. Center for Dev. of Far-Infrared Region, Fukui Univ., Japan
Abstract :
Sintering at high temperature (up to 2200°C) was achieved. Boron carbide has been sintered to 83% of theoretical density without carbon or sintering aides by using a 24 GHz gyrotron as a radiation source. The densification of B4C was occurred at 2000°C. However the densification showed the plateau at the temperature 2100°C. The SEM shows the sintering process for small pores occur at the early stage of sintering below the temperature 2100°C. These results suggest the green specimens which doesn´t have large pores, make more dense sintered pellets below 2100°C.
Keywords :
boron compounds; ceramic industry; ceramics; gyrotrons; microwave heating; powder technology; sintering; 2200 C; 24 GHz; B4C; SEM; carbide powders; ceramics sintering; compact sintering system; densification; gyrotron system; high temperature sintering; Boron; Ceramics; Conducting materials; Electromagnetic heating; Electron beams; Gyrotrons; Laboratories; Physics; Power generation; Voltage;
Conference_Titel :
Physics and Engineering of Microwaves, Millimeter, and Submillimeter Waves, 2004. MSMW 04. The Fifth International Kharkov Symposium on
Print_ISBN :
0-7803-8411-3
DOI :
10.1109/MSMW.2004.1346173
