Title :
Ultra high temperature sintering by using 24 GHz gyrotron
Author :
Mitsudo, Seitaro ; Hoshizuki, Hisanori ; Matsuura, Kazunari ; Saji, Tasaburo ; Idehara, Toshitaka ; Glyavin, Mikhail Yu ; Eremeev, Anatolii G. ; Honda, Tmomi ; Iwai, Yoshiro ; Kitano, Akihiro ; Ishibashi, Junichi ; Nishi, Hiroshi
Author_Institution :
Res. Center for Dev. of Far-Infrared Region, Fukui Univ., Fukui, Japan
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 were observed.
Keywords :
boron compounds; ceramics; fracture; grain growth; high-frequency effects; high-temperature effects; scanning electron microscopy; shrinkage; sintering; B4C; SEM; boron carbide; ceramics; density; flowing argon gas; fracture surface; frequency 24 GHz; grain growth; gyrotron; microwave processing; neutron-absorbing cross-section; nuclear reactors; radiation protection; shrinkage; temperature 2000 degC; ultrahigh temperature sintering; Amplitude shift keying; Argon;
Conference_Titel :
High-Power Particle Beams (BEAMS 2004), 2004 International Conference on
Conference_Location :
St. Petersburg
Print_ISBN :
978-5-87911-088-3
