| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8012441 | Materials Letters | 2018 | 10 Pages |
Abstract
Addition of ZrC to ZrB2 is favored to improve the fracture toughness of ZrB2. In this paper, ZrB2-ZrC composite nanofibers with eutectic composition are fabricated by electrospinning and carbothermal reduction. The precursors prepared by electrospinning are smooth and uniform. ZrB2-ZrC composite nanofibers could be fabricated by heat-treatment of precursors at 1300â¯Â°C in argon. Heat-treatment temperature influences the crystalline structure and grain size of nanofibers. The diameter of ZrB2-ZrC composite nanofibers is about 250â¯nm. The mole ratio of ZrB2 and ZrC in the nanofibers is 47:53, very close to the eutectic composition of ZrB2-ZrC composites. Some amorphous carbon is present in the nanofibers. The effect of heat-treatment temperature on amorphous carbon content is analyzed. The interface between ZrB2 and ZrC nano-grains is characterized.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Fuping Li, Zhuoli Xu, Kang Zhao, Yufei Tang,