Journal
CERAMICS INTERNATIONAL
Volume 45, Issue 14, Pages 16759-16764Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2019.05.211
Keywords
Transmission electron microscopy; Zirconium diboride; Hot pressing; Silicon carbide; Carbon black
Categories
Ask authors/readers for more resources
Hybrid ZrB2-based composite having 10 vol% nano-sized carbon black and 20 vol% SiC was fabricated by vacuum hot pressing at 1850 degrees C under 20 MPa for 60 min. The microstructure and sinterability of the as-sintered ceramic was studied by X-ray powder diffraction, scanning electron microscopy, X-ray spectroscopy, scanning transmission electron microscopy and transmission electron microscopy analyses. A fully-dense hybrid composite could be achieved by hot pressing method under the aforementioned conditions. No new in-situ phase formation was detected after sintering process. Although the densification progressed in a non-reactive manner, the addition of carbonaceous material assisted the sinterability acting as the surface oxides cleaner. The precise phase and nanostructural investigations of the prepared ceramic verified the partial graphitization of carbon black and conversion of amorphous nano-additive into crystalline graphite nano-flakes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available