Supported by the National Natural Science Foundation of China under Grant No 10576020.
A first-principles plane wave method with the ultrasoft pseudopotential scheme in the frame of the generalized gradient approximation (GGA) is performed to calculate the lattice parameters, the bulk modulus Bo and i...
Supported by the National Natural Science Foundation of China under Grant Nos 50225207, 50372055 and 50472051, and the National Basic Research Programme of China under Grant No 2005CB724400.
B2CN precursor is prepared by a mechanical vibration-milling process using amorphous boron, graphite and h-BN powders with mole ratio of 1:1:1. A mixture of precursor and Ca3B2N4 catalyst is treated under high press...