Thermal-stability and compressive properties of one boron nitride nanotube embedded in another carbon tube

The melting and axial compression of one (5, 5) single-walled boron nitride (BN) nanotube, as well as the (5, 5) BN tube embedded in one (10, 10) carbon nanotube, were simulated by molecular dynamics method. According to the calculated results, their differences in thermal-stability and compressive properties were discussed. It is shown that (i) the single-walled BN nanotube melts at about 4600 K, and the BN tube restricted in the carbon tube basically holds its configuration even at the high temperature of 5000 K; (ii) the restricted BN tube has much better anti-compression capability than the single-walled BN nanotube.