Pressure-induced effects on elastic and mechanical properties of TiC and TiN: A DFT study Zhao-Yong Jiao, Shu-Hong Ma, Xian-Zhou Zhang and Xiao-Fen Huang EPL, 101 4 (2013) 46002 Published online: 06 March 2013 DOI: 10.1209/0295-5075/101/46002