Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1473871 | Journal of the European Ceramic Society | 2016 | 4 Pages |
Abstract
A novel route combining the reactive spark plasma sintering (R-SPS) and HfSi2-C powders was proposed for fabricating dense and nano-structured HfC–SiC composites. Ultra-fine and homogeneously distributed HfC (310 nm) and SiC (210 nm) grains were obtained after sintering at 1750 °C, which were attributed to the molecular-level homogeneity of Si and Hf in HfSi2, the high-energy ball-milling of raw powders and low sintering temperature by R-SPS. The fracture toughness of the composites was improved up to 3 MPa m1/2 because of the homogeneous distribution of HfC and SiC grains and consequent enhancement of crack deflection.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Lun Feng, Sea-Hoon Lee, Hai-Long Wang, Hee-Soo Lee,