High power millimeter and submillimeter wave material processing

Author

Mitsudo, S. ; Hoshizuki, H. ; Matsuura, K. ; Saji, T. ; Idehara, T. ; Glyain, M. ; Eremeev, A. ; Zapevalov, V. ; Kitano, A. ; Nishi, H. ; Ishibashi, J.

Author_Institution

Res. Center for Dev. of Far-Infrared Region, Fukui Univ., Japan

fYear

2004

fDate

27 Sept.-1 Oct. 2004

Firstpage

727

Lastpage

728

Abstract

Boron carbide (B₄C) is one of advanced materials and is being used in a wide rage of applications. The unique feature of this material is its large neutron-absorbing cross-section. Some of its most prominent applications are controlling rods in nuclear reactors and radiation protection. 24 GHz microwave processing for B₄C ceramics were performed under flowing argon gas using the sintering system. The sintered samples were characterized by the density, the shrinkage and SEM micrographs of fracture surface. Above the temperature of 2000°C, the shrinkage and the grain grows are observed.

Keywords

boron compounds; ceramics; grain growth; gyrotrons; radiation protection; scanning electron microscopy; sintering; 24 GHz; B₄C; B₄C ceramics; SEM micrographs; boron carbide material; fracture surface; grain growth; high power millimeter; microwave processing; neutron absorbing cross section; nuclear reactors; radiation protection; shrinkage; sintering system; submillimeter wave material processing; Boron; Ceramics; Conducting materials; Electromagnetic heating; Electron beams; Gyrotrons; Laboratories; Materials processing; Powders; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on

Print_ISBN

0-7803-8490-3

Type

conf

DOI

10.1109/ICIMW.2004.1422298

Filename

1422298