| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5443356 | Scripta Materialia | 2017 | 4 Pages |
Abstract
The densification and mechanical properties of B4C-TiB2 composites fabricated by reactive pulsed electric current sintering from a mixture of TiC and amorphous B powders were investigated. The excess of B was essential to remove the carbon produced by the reaction. The degassing process at 1900 °C before applying a 50 MPa external pressure greatly improved the densification of the composites. The B4C-41 vol% TiB2 composite obtained at the optimum condition had a high 3-point bending strength of 891 MPa, a Vickers hardness of 28 GPa and a fracture toughness of 4.4 MPa m1/2, respectively.
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Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Zetan Liu, Dewen Wang, Jiamao Li, Qing Huang, Songlin Ran,