Kazuyuki Kakegawa   Chunming Wen   Naofumi Uekawa   Takashi Kojima   
Key Engineering Materials 617 72-77 2014年 [査読有り]
The possible use of SiC as a Spark Plasma Sintering (SPS) die was examined. Although SiC has good strength even at high temperatures, electrical conductivity is generally too low for use as the SPS die. Maximum output voltage of a typical SPS mach...
Uekawa Naofumi   Hokama Yasuyuki   Wen Chun Ming   Kojima Takashi   Kakegawa Kazuyuki   
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 122(1421) 54-57 2014年1月 [査読有り]
An aqueous solution of aluminum nitrate and yttrium nitrate was prepared and ethylenediamine molecules were added into the aqueous solution. The obtained precipitated precursor particles were fired and oxide particles were obtained. When ethylened...
Dialysis and peptization, which are colloid chemical solution processes, are simple and effective techniques for controlling hydrolysis of hydrated metal cations. These synthetic processes preparation of stable sol with dispersion of doped oxide n...
Porous materials were prepared by stacking needle-like titania particles. The uniform, needle-like titania particles were synthesized by hydrothermal treatment of titanium hydroxide gel containing ethylenediamine. A seeding technique controlled th...