〈特集II〉先端から基盤までを支える粉体工学の進歩
微粒子複合化・構造制御とその応用展開
2014 年 57 巻 p. 43-50
詳細
2014 年 57 巻 p. 43-50
A mechanical particle composite process was applied to develop several kinds of advanced ceramics. Nanoparticles were stuck on a larger particles and they were well dispersed in powder mixtures. In most cases, microstructure of the developed advanced ceramics was very uniform. CNT-TiO2 nanocomposite particles for electrically conductive CNT-dispersed Si3N4 ceramics from, AlN-Y2O3 nanocomposite paritcles for AlN ceramics having highly electrical insulation, ZnO-Al2O3 nanocomposite particle for ZnO ceramics with highly electrical conductivity, Al2O3-carbon black nanocoposite particles for pore size and morphology-controlled porous Al2O3 ceramics, and BaCO3-TiO2 nanocomposite particles for synthesis of tetragonal BaTiO3 nanoparticles having highly crystallinity were prepared by the mechanical particle composite process. It was shown that the mechanical particle composite process is very effective in the microstructure control and improvement of many kinds of properties of advanced ceramics.
