| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1460048 | Ceramics International | 2015 | 7 Pages |
Abstract
The TiB2–NbC ceramic system was consolidated by reactive spark plasma sintering (SPS). Densification, phase relations, microstructure evolution, and their effect on the properties of SPS-consolidated TiB2–NbC bodies were examined. The densification of TiB2 was enhanced by the addition of NbC, with 10 wt% NbC being the most effective. The phases that developed during reaction-driven consolidation of the NbC–TiB2 system at 2000 °C were (Nb,Ti) carbide and (Ti,Nb) diboride solid solutions and 1–2 µm TiB2 grains. The best balance between hardness (24 GPa) and fracture toughness (6.8 MPa m−2) was found in 30 wt% NbC–TiB2 composites consolidated at 2000 °C for 5 min.
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Authors
Dmytro Demirskyi, Yoshio Sakka, Oleg Vasylkiv,