| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1603500 | International Journal of Refractory Metals and Hard Materials | 2012 | 9 Pages |
Abstract
⺠Reaction hot pressing of B4C and HfO2 yielded full dense, high strength (7.07 MPa.m1/2 for 8.8%HfB2) B4C-HfB2 composite. ⺠B4C-HfB2 composite exhibits high elastic (525 GPa) and shear moduli (196 GPa). ⺠It proved to be an efficient technique for the fabrication of high dense B4C-HfB2 composite at a lower temperature. ⺠It also eliminates separate synthesis step of HfB2, thus advantages of reduced cost and time. ⺠Microstructural observations reveal crack deflection, arrest and bridging as major toughening phenomena in the composites.
Related Topics
Physical Sciences and Engineering
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Authors
K. Sairam, J.K. Sonber, T.S.R.Ch. Murthy, C. Subramanian, R.C. Hubli, A.K. Suri,