Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5440882 | Journal of the European Ceramic Society | 2017 | 5 Pages |
Abstract
Spark plasma sintering of TiB2-boron ceramics using commercially available raw powders is reported. The B4C phase developed during reaction-driven consolidation at 1900 °C. The newly formed grains were located at the grain junctions and the triple point of TiB2 grains, forming a covalent and stiff skeleton of B4C. The flexural strength of the TiB2-10 wt.% boron ceramic composites reached 910 MPa at room temperature and 1105 MPa at 1600 °С. Which is the highest strength reported for non-oxide ceramics at 1600 °C. This was followed by a rapid decrease at 1800 °C to 480-620 MPa, which was confirmed by increased number of cavitated titanium diboride grains observed after flexural strength tests.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Dmytro Demirskyi, Hanna Borodianska, Yoshio Sakka, Oleg Vasylkiv,