@article{chen_meredith_dickey_2015, title={Growth and Microstructure-Dependent Hardness of Directionally Solidified WC-W2C Eutectoid Ceramics}, volume={98}, ISSN={0002-7820}, url={http://dx.doi.org/10.1111/jace.13561}, DOI={10.1111/jace.13561}, abstractNote={Directionally solidified WC–W2C ceramics containing 40 at% carbon, corresponding to the WC–W2C eutectoid composition, were produced by laser surface melt processing. The resulting microstructures showed a lamellar-type eutectic/eutectoid microstructure with the WC minor phase embedded in the W2C matrix phase. The interlamellar spacing (λ) in the eutectoid regions followed the relationship Vλ3.8 = constant, with the smallest spacing of 331 ± 36 nm achieved in the 3.24 mm/s processed sample. The indentation hardness increased with decreasing interlamellar spacing, and a Vickers indentation hardness of 28.5 GPa was achieved in the sample with the smallest interlamellar spacing. The directionally solidified WC–W2C materials show enhanced indentation mechanical properties in comparison to previously reported WC–Co composites and WC-based materials.}, number={7}, journal={Journal of the American Ceramic Society}, publisher={Wiley}, author={Chen, Wei-Ting and Meredith, Caleb H. and Dickey, Elizabeth C.}, editor={Trice, R.Editor}, year={2015}, month={Mar}, pages={2191–2196} }