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- Title
Structure and Mechanical Properties of Hot-Pressed Composite Ceramics W<sub>2</sub>B<sub>5</sub>–ZrB<sub>2</sub>–SiC–B<sub>4</sub>C.
- Authors
Nesmelov, D. D.; Ordan'yan, S. S.; Udalov, Yu. P.
- Abstract
A high-density ceramic material (97% of theoretical density) was obtained by hot pressing of ball-milled powders W2B5, ZrB2, SiC and B4C with holding for 15 minutes at a temperature of 1850°C and a pressure of 30 MPa in an argon atmosphere. The structure and composition of the material were investigated by x-ray diffraction, scanning electron microscopy, and energy-dispersive x-ray spectroscopy. Vickers hardness (19.3 GPa), crack resistance coefficient (5,7 MPa∙m1/2) and bending strength (695 MPa) were determined.
- Subjects
CERAMICS; BENDING strength; VICKERS hardness; HOT pressing; SCANNING electron microscopy; CERAMIC materials; COMPOSITE construction
- Publication
Refractories & Industrial Ceramics, 2021, Vol 62, Issue 2, p202
- ISSN
1083-4877
- Publication type
Article
- DOI
10.1007/s11148-021-00583-8