Preparation of Hollow Spherical and Core/shell Structured Powders by Plasma Processing

摘要

Four types of hollow spherical micro- and nano-szied powders of ZrO2-7wt.%Y2O3(7YSZ), ZrO2-7wt.%Y2O3, Al2O3-13wt.%TiO2(AT) and WC as well as one type of core/shell structured powder of ZrB2-30wt.%MoSi2 were pre-paredvia plasma processing. In addition, the formation mechanisms of hollow spherical and core/shell structured pow-ders preparedvia plasma processing were also proposed.