@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 –W 2 C ceramics containing 40 at% carbon, corresponding to the WC –W 2 C 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 W 2 C matrix phase. The interlamellar spacing (λ) in the eutectoid regions followed the relationship V λ 3.8 = 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 –W 2 C 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} }