Preparation of highly-dense TiB2 ceramic with excellent mechanical properties by spark plasma sintering using hexagonal TiB2 plates
MATERIALS RESEARCH EXPRESS(2019)
Abstract
Highly-dense TiB2 ceramic with excellent mechanical properties including Vickers hardness of 24.2 GPa and fracture toughness of 7.3 MPa.m(1/2) is fabricated by spark plasma sintering of hexagonal TiB2 plates. Compared with the commercial TiB2 powder, the TiB2 plate is verified to have satisfying sinterability as well as the potential in promoting the mechanical properties of TiB2 ceramics. The graphite and boron-rich carbide formed in situ at the grain boundary of TiB2, which has remarkable effects on promoting the stress releases in the crack tip and enhancing the resistance to crack propagation.
MoreTranslated text
Key words
ultra-high temperature ceramics,TiB2 plates,spark plasma sintering,mechanical properties
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined