Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7898114 | Journal of the European Ceramic Society | 2018 | 17 Pages |
Abstract
To improve the microstructure and properties of ZrB2-SiC (ZrB2-30â¯vol%SiC, Z7S3) coatings, a facile synthesis route involving induction plasma spheroidization (IPS) has been proposed, and the morphologies, particle size distributions, and phase compositions of the feedstock powders were analysed by scanning electron microscopy and focused ion beam techniques. The obtained results showed that the surfaces of the produced powders contained eutectic-like and granular zones. Owing to the existence of a temperature gradient, the internal microstructure of the IPS-treated powder exhibited a three-layered structure consisting of a â²surface shellâ², a â²transition layerâ², and a â²porous coreâ². Additionally, the properties of the IPS-treated samples were compared with those of the spray-dried (SD) powders. The former exhibited good plastic deformation properties, and their single splats contained flattened structures, while the single splats of the SD powder melted only partially retaining some of their original characteristics.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Shijie Sun, Zhuang Ma, Yanbo Liu, Ling Liu, Fuchi Wang, Jiayi Guo,